Update ES6 export/import syntax
All (optional) modules are in the je/ folder
Remove api.$
Put getNodeMethods() on $
Refactor mode module
Move 'should create a DOM fragment from string' to selector specs
Improve support/tests for build without selector module
Add createFragment() to test helpers
Add minified dist files (using uglify)
Fix clean:tmp task
Update dist files
0.2.3