Updates htmlpurifier to 4.6.0
Updates query to 1.10.2
Updates JQueryUI to 1.10.4
Analytics enhancements/bug fixes
  - new file admin_spin_icon.js
  - replaces icon for all .navItems with a spinner when clicked
  - handles one result for sources and one day
  - fixes date offset problem in hover
Functioning canonicalizer for url parameters

* code initially in modules/default.php moved to canonicalizer
for multi-module functionality
* added av.php non-canonical keys
* added publication/module.php non-canonical keys
* added events.php non-canonical keys
* added phpdoc (+5 squashed commits)
Squashed commits:
[e02cc48] some logic fixes
- strips trailing slash
- checks if query string exists
[193b3c7] canonicalization working for feature module
moved most the work to the defaultMinisiteModule class
[a7300a4] more fleshed out canonicalized class
[2f42069] beginning work
[e15744d] skeletal code from Matt at Reason Conference for rel=canonical
Adds /pagetypes demo site
  * reason4.5.sql
  * adds images and assets
  * updates setup.php
Fixes a logic error for google analytics vs google map use
4.6 = bleeding, 4.5 = current
fixes bug in classifieds (per Matt Ryan)