diff --git a/Cargo.lock b/Cargo.lock
index 6f9d96e..d16669f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -5,11 +5,11 @@ dependencies = [
  "ansi_term 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "datetime 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "getopts 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "git2 0.1.18 (registry+https://github.com/rust-lang/crates.io-index)",
+ "git2 0.1.20 (registry+https://github.com/rust-lang/crates.io-index)",
  "locale 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "natord 1.0.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "number_prefix 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "pad 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pad 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "users 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -29,8 +29,8 @@ version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "locale 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)",
- "pad 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "regex 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pad 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex_macros 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -44,17 +44,17 @@ name = "getopts"
 version = "0.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "log 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "git2"
-version = "0.1.18"
+version = "0.1.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "libgit2-sys 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.2.20 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.2.21 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -67,10 +67,10 @@ name = "libgit2-sys"
 version = "0.1.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libssh2-sys 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libssh2-sys 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "libz-sys 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "openssl-sys 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "pkg-config 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl-sys 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pkg-config 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -83,12 +83,13 @@ dependencies = [
 
 [[package]]
 name = "libssh2-sys"
-version = "0.1.6"
+version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
+ "libc 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "libz-sys 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "openssl-sys 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "pkg-config 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl-sys 0.4.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pkg-config 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -106,7 +107,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "log"
-version = "0.2.3"
+version = "0.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -126,17 +127,17 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "openssl-sys"
-version = "0.4.1"
+version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "gcc 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "libressl-pnacl-sys 2.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "pkg-config 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "pkg-config 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "pad"
-version = "0.1.1"
+version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -146,7 +147,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "pkg-config"
-version = "0.2.1"
+version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -156,7 +157,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "regex"
-version = "0.1.14"
+version = "0.1.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -164,21 +165,21 @@ name = "regex_macros"
 version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "regex 0.1.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 0.1.15 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "rustc-serialize"
-version = "0.2.13"
+version = "0.2.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "url"
-version = "0.2.20"
+version = "0.2.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "matches 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "rustc-serialize 0.2.13 (registry+https://github.com/rust-lang/crates.io-index)",
+ "rustc-serialize 0.2.15 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]