separated database instances between read/write

run concurrently for reading, sequentially for writing

create DataWriteTaskFactory for spawning writing tasks
begin adding rename feature
Merge branch 'data_overhaul'

Conflicts:
	wta-droid/src/com/masenf/wtaandroid/WtaActivity.java
	wta-droid/src/com/masenf/wtaandroid/fragment/NextBusFragment.java
Moved/Generalized RenameStopDialogFragment

Base functionality is in abstract class EditDialogFragment. Easiest way to extend is
with anonymous class implementing the onSaveData method.

Polished up stop alias renaming

Bumped library pointer to include support for OnItemLongClickListener
for BaseEntry