Init
Initial commit
Fix Paymentwall_Widget, Add Paymentwall_Pingback and Paymentwall_Product
Fix errors in Paymentwall_Widget
Fix the comments
Fix errors + Changing the way to merge parameters and extraParams
Initial commit PW_Pro
Fix
Fixing errors in calculating signature
Fix widget call issues
Fix error reporting
Add checking for passed parameters
Initial README.md
Readme
Change namespace
readme
pw pro
Fix C# lib

Summary: Phase 1

Test Plan: Phase 1

Reviewers: vanya

Differential Revision: http://p.s.stuffio.com/D5
finalized library
readme fixes