[fix bug 1010110] Allow skill autocomplete during registration.
Remove unused JS files.

 * underscore.js
 * profiles.js
 * Update tagit code for skills.
Merge pull request #951 from glogiotatidis/1010110

[fix bug 1010110] Allow skill autocomplete during registration.
Merge pull request #948 from glogiotatidis/remove-old-js-libs

Remove unused JS files.
[Fix Bug 976330] Add geocode model and map picker on edit profile
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