Merge remote-tracking branch 'origin/master'

Conflicts:
	.gitignore
Merge remote-tracking branch 'origin/master'
initial commit for ribbon branch
there are several files who only differ in the line endings
Merge remote-tracking branch 'origin/master' into ribbons

Conflicts:
	Jabref_Beta_2_7_Docear/build.number
	Jabref_Beta_2_7_Docear/src/resource/build.properties
	docear_framework/docear.version.properties
	docear_plugin_core/resources/build.number
	docear_plugin_core/resources/version.properties
creators and contributors for ribbons menu
jars are missing
added missing library

and use standard ClassLoader
added missing jar file
first working impl of ribbons
impl more ribbon contributor and xml-reader
more ribbon feature impl.
first special contributor
Merge remote-tracking branch 'origin/ribbons' into ribbons
added collapse-resizer for ribbon
impl "priority" attribute for ribbon actions
font band implementation
Merge remote-tracking branch 'origin/ribbons' into ribbons
added action-popup actionlistener
Merge remote-tracking branch 'origin/ribbons' into ribbons
re-enabled map popups and fixed some NPE