erlang-ouath2 added to libs
core: fix security issue.

Escape arguments passed to external plugins.

Fixes #61, Fixes #12.
Merge pull request #62 from kaos/master

Fix security issue reported earlier today...
ChangeLog.md updated. AUTHORS updated
Notifications support added
twitter support added
notifications support for channels
brain memory fixed
Set preferred version of Erlang.
You need to select at least R15 for cowboy and ranch to compile.
Merge pull request #63 from tmcgilchrist/fix_heroku_instructions

Set preferred version of Erlang.
Update AUTHORS