[WIP] [feature] StructureBracesFixer

Braces for structure blocks, fix #98

- [x] add missing braces
- [x] correct single-level intend
- [ ] correct multi-level intend
- [ ] fix #168 
- [ ] make Travis pass
use ``!$token->isGivenKind(array(T_DO, T_IF, T_ELSE, T_ELSEIF, T_FOR, T_FOREACH, T_WHILE))`` instead