[APSTUD-8187] Added default values for UI elements. Taken from https://github.com/aptana/studio3-rcp/blob/development/plugins/com.aptana.editor.common.override/plugin.properties and https://github.com/aptana/studio3-rcp/blob/development/plugins/com.aptana.ui.override/OSGI-INF/l10n/bundle.properties
Merge pull request #186 from ingo/APSTUD-8187

[APSTUD-8187] Added default values for UI elements