LB-1664: As a user, I want my old embeds to keep working after switching to the SEO solution

.gitignor the subtree .gitignore for the repo /plugins/embed/
Squashed 'plugins/embed/' changes from d2729db..7cc7af0

7cc7af0 Merge pull request #162 from nistormihai/master
6165d62 LB-1580 Build JS for production
579880a Merge pull request #161 from nistormihai/master
2e76cd7 LB-1580: Build JS for production
d95d869 Merge pull request #160 from nistormihai/vladnicoara-tricky-permalink-issue
8793e28 LB-1732 [nodejs embed] tricky permalink issue
93c89ab Merge branch 'tricky-permalink-issue' of github.com:vladnicoara/plugin-liveblog-embed-server into vladnicoara-tricky-permalink-issue
a4ab316 LB-1732 tricky permalink issue
c82250c Merge pull request #159 from nistormihai/master
5deae19 LB-1580 Build JS for production
29286a9 Merge pull request #157 from nistormihai/build-reloaded
cde7138 LB-1583 Plugins not working on Internet Explorer(9)
1faf923 LB-174 Internationalization dates doesn't work.
930d900 Merge pull request #155 from patriciagarcia/LB-1746
e36f174 LB-1746 Update pending posts label when pending post deleted
3750b5f Merge pull request #156 from vladnicoara/permalink-bug
d4a88c6 LB-1730 permanent links bug ON SEO
4ae5400 Merge pull request #154 from patriciagarcia/LB-1389
c101594 LB-1743 Fix bug: pending posts button not shown
f034e97 LB-1503 Use scroll-pagination plugin in default and stt themes
f4cafc1 LB-1389 Add scroll-pagination plugin
8fb570a Merge pull request #151 from nidzix/master
172d11d LB-1503 Minor refactor to twitter-widget plugin
71dd5ec Merge pull request #152 from vladnicoara/new-posts-notification-latest
22cd2ec LB-1510 New post notifications
74a77e1 LB-1709 : As a user at Tageswoche, I want my production instance of Live Blog to be on the latest version

git-subtree-dir: plugins/embed
git-subtree-split: 7cc7af0a53781eeb60dc6be24d757719a3808933
Merge commit 'dec31ce8d818a73334efcb73893b1a37179de68c' into devel
Merge pull request #731 from nistormihai/devel

Devel