Animal sniffer

[Shredder121]

Hello @kohsuke.

Seeing as you recently set the compiler target back to 5, I wanted to help you maintain this compatibility.
There is still one unresolved issue:

--- animal-sniffer-maven-plugin:1.15:check (ensure-java-1.5-class-library) @ github-api ---
Checking unresolved references to org.codehaus.mojo.signature:java15:1.0
X:\Git\github\github-api\src\main\java\org\kohsuke\github\GHContent.java:81: Undefined reference: byte[] javax.xml.bind.DatatypeConverter.parseBase64Binary(String)
X:\Git\github\github-api\src\main\java\org\kohsuke\github\GHContent.java:182: Undefined reference: String javax.xml.bind.DatatypeConverter.printBase64Binary(byte[])
X:\Git\github\github-api\src\main\java\org\kohsuke\github\GHRepository.java:1165: Undefined reference: String javax.xml.bind.DatatypeConverter.printBase64Binary(byte[])

Hope that you can integrate this.

[Shredder121]

@KostyaSha Could you please voice your concern via comments?
The new reactions don't trigger notifications.
I am very interested in the obstacles.