Fix the 'posted' view

Now is actually topics that you have posted in - previously, it was all topics you had tracked, starred, posted, read, ....
No clue how that came about.
Add spec for posted list

The test fails on 956b14a and passes on this branch
Remove confusing/incorrect comments
Add post highlighting to mobile
Delays loading spinner when switching between tabs.
FEATURE: create hyperlinked images from the image insertion dialog
typo

thanks @Naatan
Unescape topic title before setting it as the document title.
FIX: remove likes and other post actions before nuking a user
FIX: Upwards scrolling. Updates ember-cloaking
Synced editor scrolling PoC.
FEATURE: add redirect_users_to_top_page site setting (default to true)
Moves Markdown Editor from vendor to discourse.
Merge pull request #2213 from vikhyat/fix-title-lt

Unescape topic title before setting it as the document title
Merge pull request #2211 from velesin/delayed_tab_switch_spinner

Delays loading spinner when switching between tabs.
Merge pull request #2210 from jtescher/master

Remove confusing/incorrect comments
Merge pull request #2206 from riking/posted

Fix the 'posted' view so that it actually does something
FIX: Don't allow mid word emoticons
Revert "FIX: Don't allow mid word emoticons"

This reverts commit 65efb8d83fdeeb6e48c1d6a1b0668085b4461daf.
BUGFIX: protect ourselved against rogue onebox gem