"privacy aware" should be "privacy-aware"

Add more markdown-it plugins

activate sanitizer, sub and sup

http://www.w3.org/2005/Incubator/socialweb/XGR-socialweb-20101206/
https://cs.uwaterloo.ca/~uhengart/publications/gis10.pdf
http://research.microsoft.com/pubs/152497/01main.pdf
http://www.amazon.com/Privacy-Aware-Knowledge-Discovery-Applications-Techniques/dp/143980365X

Bump markdown-it-hashtag to v0.2.3

Bump markdown-it to 3.0.3

Don't truncate notification emails anymore

Remove chars from PosixBracketExpressions that js doesn't like

Replace pagedown by markdown-it

Invert button gradient

Use the standard syntax for gradient

Remove CSS vendor prefixes and switch to autoprefixer

Port contacts page to backbonejs

Fix typo in profile_header_view

Add followed tags to the mobile menu

Conflicts:
	Changelog.md

Add currency setting to paypal donation and allow unhosted button setting

Conflicts:
	Changelog.md

toBeTruethy and toBeFalsy don't test anything
use toBeTruthy() and toBeFalsy() instead

Replace %{third_party_tools} by the appropriate hyperlink in tags FAQ

Remove limited content from email notifications

Handle reshares of deleted posts in OpenGraph tags generation code