Merge pull request #74 from wilsonge/feature-ajax

Cleanup javascript so it passes JSLint tests
Merge pull request #75 from wilsonge/feature-ajax

More PHP code cleanup
Replaced BBCode "strike" with "underline"
fixed smiley overlapping on chrome and opera
Try writing the script for the smilies
Merge remote-tracking branch 'upstream/feature-ajax' into hotfix/smile-param
Simplify code and fix bugs
Merge pull request #78 from wilsonge/hotfix/smile-param

Fix smile param => bbcode change in the script
Merge remote-tracking branch 'upstream/feature-ajax' into feature-ajax