some modifications to fix problems with network drive paths (see #259)
updated version numbers
Merge remote-tracking branch 'origin/ribbons' into ribbons

Conflicts:
	Jabref_Beta_2_7_Docear/build.number
	docear_framework/docear.version.properties
	docear_plugin_core/resources/build.number
	docear_plugin_core/resources/version.properties