Cleanup templates.
Merge pull request #900 from glogiotatidis/templates

Cleanup templates.
[fix bug 990538] Beautify and cleanup group urls.
Merge pull request #885 from glogiotatidis/niceurls

[fix bug 990538] Beautify and cleanup group urls.
[Fix bug 703316] Update invite email
[bug 842490] Restore TextArea DOM element for message.
Merge pull request #898 from jpotts/fix_703316

[Fix bug 703316] Update invite email
[fix bug 995950] Remove old images and scripts.
[Fix bug 694410] Add story link to profile
Merge pull request #897 from jpotts/fix_694410

[Fix bug 694410] Add story link to profile
[fix bug 970697] Display websites in central column.
Merge pull request #902 from glogiotatidis/970697

[fix bug 970697] Display websites in central column.
[bug 997080] Update tabzilla URLs.
[bug 997080] Add .htaccess for media caching.
[bug 926687] Delete group.languages contenttype and permissions.
Merge pull request #904 from glogiotatidis/deletelangperms

[bug 926687] Delete group.languages contenttype and permissions.
Merge pull request #901 from glogiotatidis/cleanupmedia

[fix bug 995950] Remove old images and scripts.
[fix bug 997666] Use mozillians_field on profile.skills.

Switch from custom code to mozillians_field() helper to:
 * Make code consistent and avoid custom code.
 * Display skill errors
[fix bug 997455] Remove skill JS validation.

Removing outdated client side skill validation code. We do validate
skills in python.
[fix bug 995950] Remove jsi18n references.

We don't use django's built in javascript translation tools. This commit
removes related code.