Change occurences of jigoshop.com into www.jigoshop.com
Remove unnecessary duplicated PHP Post Max Size
Add functions for assets management

This functions are:
* jigoshop_add_style()
* jigoshop_add_script()

Additionally there are 2 more functions to use to distinguish current page:
* is_jigoshop_page()
* is_jigoshop_single_page()
Add checking for page on stylesheets
Update README and add new CHANGELOG file
Resolve conflicts in Ukrainian translation
Remove commented code

This is why we have VCSes!
Merge pull request #915 from megawebmaster/dev

Jigoshop Style and Scripts API