persian fixes
Merge pull request #55 from carolyna/master

2 strings fixed
About/Contact persian strings
Merge pull request #56 from carolyna/master

about and contact strings
hardcode dir="ltr" on about and contact modals

not yet internationalized
update .gitignore
better email regex pattern

from http://www.regular-expressions.info/email.html
copy tweak from 6d277dee
Merge branch 'master' into bowerify

* master:
  update .gitignore
  hardcode dir="ltr" on about and contact modals
  About/Contact persian strings
  persian fixes

Conflicts:
	app/partials/modals.html
start rewriting vis in only angular

temporarily use 0.4.0-SNAPSHOT release of angular-ui-bootstrap while the fix
for angular-ui/bootstrap#387 has not yet been released