Fix block nesting

Blocks nested inside an element inside a block where not parsed properly.
parse single quoted strings and add support for escapes
Sort and de-dupe boolean attribute list.
Merge pull request #16 from adamdicarlo/clean-up-boolean-attributes

Sort and de-dupe boolean attribute list.
Merge branch 'better_string_parsing' of github.com:floridoo/domthing into floridoo-better_string_parsing
Merge pull request #14 from floridoo/blockNestingFix

Fix block nesting
Update TODO.md
Fix unquoted/escaping for curlies.
Update todo
Add call and apply
Add testem
Add testem
0.4.0