JENKINS-12134 - Make fingerprinting artifacts optional.
Don't create a FingerprintAction unless there are actual fingerprints to add.
[FIXED JENKINS-15977] ClassNotFound is maven plugin not installed

Check for the maven plugin being installed before trying to see
if the project src is a maven project.
Merge remote branch 'upstream/master'
Specific Build Selector will evaluate permalinks as well
[FIXED JENKINS-19693]
Merge branch 'master' of https://github.com/kprantis/copyartifact-plugin into kprantis-master

Conflicts:
	src/main/java/hudson/plugins/copyartifact/Copier.java
	src/main/java/hudson/plugins/copyartifact/CopyArtifact.java
	src/test/java/hudson/plugins/copyartifact/CopyArtifactTest.java
- Fingerprint Artifacts should be enabled by default
- Added German translation
- Added Test that old config.xml are imported with Fingerprint Artifacts enabled
- Updated maven-hpi-plugin in pom.xml to make hpi:run work again
[maven-release-plugin] prepare release copyartifact-1.29
[maven-release-plugin] prepare for next development iteration
Merge pull request #28 from almorelle/specificBuildSelPerma

Specific Build Selector fixes
Added a overload constructor of CopyArtifact to preserve the compatibility with CopyArtifact < 1.29.
[FIXED JENKINS-20398] Added CopyArtifactPermissionProperty, which define projects that can copy artifacts.
Added an overload testing helper method for compatibility.
Merge pull request #14 from cjo9900/JENKINS-15977

[FIXED JENKINS-15977] ClassNotFound is maven plugin not installed
[FIXED JENKINS-21274] Fixed startup failure when maven-plugin is disabled, compiled with JDK 1.6. SEE https://wiki.jenkins-ci.org/display/JENKINS/Tips+for+optional+dependencies for details.
Merge pull request #30 from ikedam/feature/JENKINS-21274_UnexpectedClassLoading

[JENKINS-21274] Fixed startup failure without maven-plugin when compiled with JDK 1.6
Merge pull request #27 from ikedam/feature/JENKINS-20398_CopyPermission

[JENKINS-20398] Job Property to define projects that can copy artifacts
Added license notice. Used MIT license for the comment in CopyArtifact.java, and statements in  https://wiki.jenkins-ci.org/display/JENKINS/Before+starting+a+new+plugin .
[maven-release-plugin] prepare release copyartifact-1.30