type="text/javascript" is redundant

<script> elements only need an explicit type when it is something
other than JavaScript.
Update dutch translation and merge changes from #290
Merge pull request #395 from lazlolazlolazlo/master

Update dutch translation and merge changes from #290
Made Bulk Actions have better UI instructions & reveal of actions
Updated JS Libs min file
Added Modal template and made People in Thread conversation show up
Update copyright notice on startup
Added sys.lockdown variable, to disable dangerous things
Fix the missing: keywords
Lockdown buglets
Adding new translations from Transifex
Adding .mo files from translations.
Commented out some things that are not developed
Commented out some features (in UI) that don't work yet
Redid Tags view to be nice responsive, tweaked some spacing of things... getting purtyer
Migrated stuff from README to wiki.
Made Compose .compose-to-email show a FIXME alert instead of failing
Fixed JS bug in compose when manually choosing to encrypt message
Pretend we are live
Prettied up Contact List card CSS