- add new servlet to get meta data from PlantUML diagram
- meta data get not only be requested as text but also as json if you set the `Accept`-header to json
- add `metadata` servlet tests
- GET: like the Proxy where you can pass a URL which the servlet will use to fetch the diagram image
- POST: file upload
- PDF dependency was missing in the pom file the JDK8
* We should think about creating a parent pom - in that case all plantuml dependencies could be in the parent pom and we would only the mantain one pom file.
(It is also possible to drop the Java 8 support.)
* Why do we not have any PDF tests?
- add rule to ignore version update hint with `-dev` followed by a dot and date (e.g. `0.37.0-dev.20230308`)
- migration from JUnit4 to JUnit5
- revert the 4 missing tests, e.g. proxy test from commit 20468f5
- add virtual host name `test.localhost` to embedded jetty server
(JUnit Tests) since localhost and IP-Addresses are no longer
supported by the proxy and use this address inside proxy `src`
- add `test-localhost` support for the docker tests. To support
this the docker hostname need to be set to test.localhost by:
`--hostname=test.localhost` (only for the docker tests)
- proxy: add file format support for PDF
- proxy: add error messages on "bad request" response
- proxy: remove dead code
- old proxy: add error messages on "bad request" response
- fix incorrect README link to docs
- add `HTTP_PROXY_READ_TIMEOUT` option -- close #240
