Question navigation "back to the previous question feature" implemented
 Color fix (removed use of holo theme)
Merge remote-tracking branch 'origin/ListView-Version' into ListView-Version

Conflicts:
	ToG/app/src/main/java/net/gswcm/tog/Identifier/IdentifierQuestListFragment.java
	ToG/app/src/main/res/layout/identifier_quest_item.xml
	ToG/app/src/main/res/layout/identifier_tree_item.xml
	ToG/app/src/main/res/layout/tree_info_header_item.xml
XML renames
Description in tree_info opens by default
minor adjustment of tree_info_text_item