Merge pull request #9 from aristov/master

exportName option doesn't work
Added default value to exportName option of bemhtml api
Added `bemtree` test
Fixed `gitignore`
Added `async` option to bemhtml api
Fixed `bemhtml` tech: set async option as `false`
Added `_getOptions` method to `bemhtml` tech
Added `bemtree` tech
Fixed test for `bemtree` tech: use `bemtree` tech instead of `bemhtml`
Added doc for `bemtree` tech
Merge pull request #10 from enb-make/feature/bemtree-tech

bemtree tech
Added `Makefile`
Updated README.md: NPM version
Added `jscs`
Updated `Makefile`: add `make lint` & `make validate`
Added `.npmignore`
Added `jshint`
code style
Added repository to package.json
Added homepage to package.json