collect dictionaries via OpenDictionary API in UI thread, not in special thread
Merge branch 'master' into beta
synchronization with beta branch
dictionary infos reading synchronization
synchronization with master branch
Merge branch 'master' into beta

Conflicts:
	src/org/geometerplus/android/fbreader/DictionaryUtil.java
dictionary list initialization in PreferenceActivity
Merge branch 'master' into beta

Conflicts:
	src/org/geometerplus/android/fbreader/preferences/PreferenceActivity.java