Some support for headless and IDE builds
Merge pull request #2 from ngiger/releng

Some support for headless and IDE builds
[1603] removal of ElexisEventCascade, changed fireStatusEvent to static
[1603] start of contacts extraction
[1603] c.e.core.ui.contacts initial checkin
[1603] c.e.core.icons -> c.e.core.ui.icons
[1603] c.e.core.icons -> c.e.core.ui.icons; missing changes
[1603] c.e.core.feature -> c.e.core.ui.feature
Updated FeatureStructure.png
Update README.md
Update .gitignore

Ignore the jetty.log file
[1603] Fix for Preferences/DBConnection missing string;
extracted folded connection string constants
Unify documentation tags (readme.textile)
[1603] p2 update plug-in, initial commit
Fix build.properties entries for Maven/Tycho
[1403] EED with ElexisContext rework
[1403] EED and Elexis Context UI refactorings
[1603] Cleaning - remove ISelectable
[1603] ported patches for 1720 and 1689
[1603] port of 1720 and 1689 EventDispatcher fix