Edits to installation guide
Update README.md

Whitespace fixes for sub lists and code.
Added missing python step
Merge pull request #520 from vladnicoara/master

LB-1155: Strange checkbox visual behavior
LB-1243
:
List of the collaborators shows users that are already collaborators
Merge pull request #521 from ioanpocol/master

LB-1243
LB-1164: As an editor, I want to filter posts on the timeline by verification status and assigned user

Removed filter by type.
Merge pull request #522 from nistormihai/master-to-delete

LB-1164: As an editor, I want to filter posts on the timeline by verific...
LB-1272 On embed replace "updated on 14:50" with "updated at 14:50"
Merge pull request #523 from patriciagarcia/LB-1272

LB-1272 On embed replace "updated on 14:50" with "updated at 14:50"
Merge pull request #440 from plaindocs/master

Editing installation guide
STT embed theme quick fix
Merge pull request #531 from nidzix/master

STT embed theme quick fix
LB-1292 : Image attached to 'Normal'-type post is overlapping other posts on embed

Fixed
LB-1272 On embed replace "updated on 14:50" with "updated at 14:50"

Fix bug: on page load the time is missing.
Merge pull request #533 from nidzix/master

LB-1292 : Image attached to 'Normal'-type post is overlapping other posts on embed
Merge pull request #534 from patriciagarcia/LB-1272-master

LB-1272 On embed replace "updated on 14:50" with "updated at 14:50"
LB-1272 Delete unneeded files (don't belong to master branch)
LB-1272 Edit files so r.js will work

Delete duplicate keys from concat.js
Change from windows eol to unix
LB-1272 Build embed and themes