tab to space
update README
Merge pull request #4 from nighca/dev

Dev
module with seajs & spm
apart
Merge pull request #5 from nighca/module

Module
remove tmp files
Merge branch 'dev' of https://github.com/nighca/i-canvas into dev
add support for mobile
Merge branch 'dev' into gh-pages
update (mobile)