add config and extend function
remove unused file
first commit of util
modify how foundation is extended
add constant and its test
fix readme
fix readme
use require js to organize code
fix test command
refactor amdclean
more requirejs refactor
move exports function to resolver
restructure the folder
code refactor and comments
add tests for base each method
add test to base object inherit method
remove duplicate tests
add mixin and its tests
add extend constructor function
refactor resolver