#150 revise requirements check
#150 Improved some comments
Merge pull request #184 from laterpay/feature/150_revise_requirements_checking

#150 revise requirements check
Removed ajax scripts to implement them in the WordPress standard way, see #179
Resolved Conflicts
Added prefix to ajax callback identifications, see #191
Improved comments
Fixed typo "browsecap"; improved documentation
Merge pull request #192 from laterpay/feature/191_prefix_for_existing_ajax_scripts

Added prefix to ajax callback identifications, see #191
Improved some documentation
Code formatting and improved comments
#187 Removed empty index.php files
#179 Used GET requests for GETting content from the server
Merge pull request #190 from laterpay/feature/179_use_wordpress_core_ajax_functions

Feature/179 use wordpress core ajax functions
#150 Quickfix for missing exit on unsatisfied requirements
Fixed notice about Undefined variable: pricing_controller; also replaced tabs by spaces
Consistent variable names, improved comments, and code formatting
#182 Sanitize user input in shortcode
#182 escaping for user input
Merge branch 'master' into feature/189_buy_post_and_token_hook_wrong_filter

Conflicts:
	laterpay/library/laterpay/LaterPay/Controller/Post/Content.php
	laterpay/library/laterpay/LaterPay/Core/Bootstrap.php