Update rest url from /projects to /project

Squashed commit of the following:

commit 4afa0d8c88acbf5d172176a7695c9e72848e018a
Merge: 262bc32 f29e728
Author: Alex Eng <aeng@redhat.com>
Date:   Wed Oct 1 15:53:28 2014 +1000

    Merge branch 'update-rest-url' of github.com:zanata/zanata-spa into update-rest-url

commit 262bc3207902dca5e5fa91f03b06a9c07a57ac65
Merge: e44c5b4 aa70d16
Author: Alex Eng <aeng@redhat.com>
Date:   Tue Sep 30 16:47:23 2014 +1000

    Merge branch 'master' into update-rest-url

commit f29e728620f8a9abb44be30528d302c0e683a6ed
Merge: e44c5b4 aa70d16
Author: Alex Eng <aeng@redhat.com>
Date:   Tue Sep 30 16:47:23 2014 +1000

    Merge branch 'master' into update-rest-url

commit e44c5b4b67c5ec740451aea2f752c4c074f5de7d
Author: Alex Eng <aeng@redhat.com>
Date:   Tue Sep 30 14:04:16 2014 +1000

    Update single project REST url to /project

commit 15633fec25587f75719a42d48b29ca94eab15304
Author: Alex Eng <aeng@redhat.com>
Date:   Tue Sep 30 11:44:07 2014 +1000

    Update rest url
Merge branch 'master' into translation-save-states

Conflicts:
	app/components/transUnit/translation/TranslationCtrl.js
	app/components/transUnit/translation/header.html
	app/editor/editor-header.html