Initial commit 2
Fixed context parsing in IfNode
Update README.md
Massive improvements:
1. added ExpressionParser with appropriate operators and functions;
2. changed each-loop syntax to pythonic 'for ... in ...';
3. each and if nodes improved by ExpressionParser features.
Oops... Forgot test.tpl file
Update README.md
Update README.md
Json data moved to the separate file
Removed unwanted context handling
Heads were merged