implement save note to database. But still not working
Merge remote-tracking branch 'origin/master'

Conflicts:
	app/src/main/java/com/xechoz/note/app/ChooseFolderDialog.java
	app/src/main/java/com/xechoz/note/app/EditorFragment.java
	app/src/main/java/com/xechoz/note/app/RecentNoteFragment.java
	app/src/main/java/com/xechoz/note/app/model/RecentNote.java
	app/src/main/java/com/xechoz/note/app/sqlite/NoteDBHelper.java
rename RecentNote table's column "RECENT_ID" to "id"