Added \u0001 as an acceptable mentioning suffix

When a nick is at the end of an action, the \u0001 character is directly
after the nick. In these cases, the mention notification regex would not
match.

This commit also includes tests for different combinations of where the
nick can be with respect to other text in the action.
Merge pull request #214 from theepicsnail/master

Added \u0001 as an acceptable mentioning suffix, fixes #213
Ensure that array buffer is stringified and parsed correctly and log errors when data becomes corrupt - #219
Bump to version 0.6.4.
Fix unrecognized symbol; now working on Android.
Merge pull request #238 from shepheb/pr

Fix unrecognized symbol; now working on Android.
Merge remote branch 'upstream/master' into tvierling