Custom Product Attribute Taxonomy Types

Actions to allow for the support of custom product attribute taxonomy
types
Loop 'add to cart' link customizable

added apply_filters to loop 'add to cart' link/button 
Javascript WooCommerce variations added trigger

Javascript trigger added to the ajax woocommerce add variations callback
Fixed array_map issue in settings. Closes #2106 #2104
consistent title on rating
Store counts in a transient. Closes #2100.
Merge pull request #2103 from foxrunsoftware/master

Hooks for added customization
Some code cleanup and comments #1765
Stop infinite loop bug #1765
Updated pot files
readme
offset the demo store notice when admin bar present. Closes #2109
demo_store z-index
Fix spelling errors in action/hook names
Merge pull request #2113 from krbvroc1/spelling_fixes

Fix spelling errors in action/hook names