Start preparing lexer for custom template engines.
Remove hardcoded sequences of mako expressions
Pass custom syntax into all parsers
Pass custom syntax to extractors
Initial API for custom syntax
Move parsers into syntax instances
Search parsers within syntax instances
Attach parsers to syntax instances
Base for django test cases
Rename variable
Update docs
Make conditionals tests pass with django syntax.
Make loops tests pass with django syntax.
Code refactoring
Code refactoring
Remove unused variable
Code refactoring
Merge branch 'hotfix-25' into develop
Code refactoring
Move unportable parser from lexer into syntax module