update table hover row bg color
replace `arguments.callee`, fix error in strict mode
Merge pull request #133 from allmobilize/codename-h

fix `arguments.callee` error in strict mode, update table hover bg
update style guide, add jshint config
update qrcode left margin
reformat js code
Merge pull request #136 from allmobilize/codename-h

update Navbar qrcode left margin; reformat js code
update style guide;
add CONTRIBUTING.md
Merge pull request #137 from allmobilize/codename-h

update style guide; add CONTRIBUTING.md
Merge branch 'master' of https://github.com/allmobilize/amazeui into hzp

# By Minwe
# Via Minwe LUO (3) and Minwe (1)
* 'master' of https://github.com/allmobilize/amazeui:
  update style guide; add CONTRIBUTING.md
  reformat js code
  update qrcode left margin
  update style guide, add jshint config
  replace `arguments.callee`, fix error in strict mode
  update table hover row bg color

Conflicts:
	widget/list_news/src/list_news.js