Cleanup whitespace and remove repeated jQuery calls

Change-Id: I704eea57edd46378c9b596ea1a2dc8f03fa8dd06
Set the direction of source and translation

Change-Id: I44dfb748955a0ba7b28503fb4e77395bff2f7097
Remove the default filter

Empty filter is for 'all', ad it should be the default, too.

Change-Id: I6230fdd1635925b2c55f8aaa888facc72dd2bf3f
Merge changes I6230fdd1,I44dfb748,I704eea57

* changes:
  Remove the default filter
  Set the direction of source and translation
  Cleanup whitespace and remove repeated jQuery calls