Finish annis-3.1.4
change version number to 3.1.5
fix #321 (negated metadata queries don't work any longer)
updated changelog
rename variable
only add constraint if the two nodes are not already connected by their component id
fix some regressions with negative value search and regex introduced by the annotext scheme
adding a first simple test case
do not create the visualizer for the docbrowser in the background process but in the vaadin UI lock context (this should fix #323)
updated changelog
fix #322: Invalid regex search error is not caught by interface
updated changelog
Finish annis-3.1.5
Finish annis-3.1.5

Conflicts:
	Misc/changelog.py
	annis-gui/pom.xml
	annis-interfaces/pom.xml
	annis-kickstarter/pom.xml
	annis-libgui/pom.xml
	annis-service/pom.xml
	annis-service/src/test/java/annis/CountTest.java
	annis-visualizers/pom.xml
	annis-widgets/pom.xml
	buildbot_scripts/copyService.sh
	doc/Doxyfile
	pom.xml
adding a first simple test case
removed old eclipse files
updating version to 3.1.6
updating licenses
updating licenses and provide missing license information for annis-service
updating licenses and renaming licenses that have special characters (" is not supported on windows)