Fixing a bug migrating from 2.0 to 2.2.

There is a case where you could end up with no ordering_count columns. This migration takes care of this.
Adding is_hidden field.

There was a situation where this column would not be added before. This makes sure it absolutely will.
Recent comments

updated style for comments widget on dashboard

Signed-off-by: Joshua Pekera <joshuapekera@me.com>
Merge branch '2.2/develop' of https://github.com/pyrocms/pyrocms into 2.2/develop
Added gravatar and date to comments on dashboard.
Adding some extra database drops in the case you are re-installing PyroCMS on top of an old install.

These are for edge cases, but don't hurt! 
Added search page on install.
Merge branch '2.2/develop' of github.com:pyrocms/pyrocms into 2.2/develop
Fixed search bettered.
Comment Widget

Final push of awesomeness for comment widget style

Signed-off-by: Joshua Pekera <joshuapekera@me.com>
Merge branch '2.2/develop' of https://github.com/pyrocms/pyrocms into 2.2/develop
Dashboard Button

added a sexy button to the main nav to separate the dashboard link from the rest of the navigation

Signed-off-by: Joshua Pekera <joshuapekera@me.com>
Quick update

margin adjustment for dashboard button

Signed-off-by: Joshua Pekera <joshuapekera@me.com>
Gave unapprove_label and approve_label more consistent names.
Removed a seemingly pointless call to display_name in comments
This was causing break and is not actually used anywhere.
Merge branch '2.2/develop' of git://github.com/pyrocms/pyrocms into 2.2/develop
Removed some debug from comment admin