[fix bug 766216] Revert "Bootstrap update_product_details."

This reverts commit d85523f1b350277343d2bb314d9cc8591080cc18.
[fix bug 854844] Show number of vouchees per user in Admin Panel.
Merge pull request #441 from glogiotatidis/766216

[fix bug 766216] Revert "Bootstrap update_product_details."
[fix bug 854821] Store the date and time a user got vouched.
[fix bug 855023] Move 'Visible to' label from Model to Template.
Merge pull request #443 from glogiotatidis/vouchees_column

[fix bug 854844] Show number of vouchees per user in Admin Panel.
Merge pull request #440 from glogiotatidis/privacy

[fix bug 855023] Move 'Visible to' label from Model to Template.
Merge pull request #442 from glogiotatidis/854821

[fix bug 854821] Store the date and time a user got vouched.
Add audience information to docs homepage
[fix bug 852699] Autocomplete UserProfiles and Users in Admin.
Merge pull request #444 from glogiotatidis/autocomplete

[fix bug 852699] Autocomplete UserProfiles and Users in Admin.
[fix bug 857066] Display region and city link only when country available.
[fix bug 857097] Admin Panel Public Profiles Filter.
Merge pull request #447 from glogiotatidis/public-profiles-admin-filter

[fix bug XXXX] Admin Panel Public Profiles Filter.
Merge pull request #448 from glogiotatidis/anonymous-view-traceback

[fix bug 857066] Display region and city link only when country available.
[bug 849969] Fix typo.
Merge pull request #449 from glogiotatidis/857066

[bug 849969] Fix typo.
[fix bug 854950] Don't resize photo on profile save.
Merge pull request #445 from glogiotatidis/854950-photo

[fix bug 854950] Don't resize photo on profile save.
[Fix Bug 854950] Fix gravatar urls