Add django-import-export and dependencies.
Add django-import-export support to admin panel.
Merge pull request #936 from glogiotatidis/importexport

Add django import-export.
[fix bug 1007567] Reset vouch metadata when is_vouched=False.
Merge pull request #943 from glogiotatidis/1007567

[fix bug 1007567] Reset vouch metadata when is_vouched=False.
[Fix bug 1005221] restored z-index
Merge pull request #945 from caktus/1005221-ios-tooltip

[Fix bug 1005221] restored z-index
[fix bug 1000923] Link External Accounts which are urls.
Fix bug 949732 Added database dump import instructions.
Merge pull request #947 from chefscott/docs_mysql_update

Fix bug 949732 Added database dump import instructions.
[fix bug 991556] Group members are not sorted alphabetically
Remove privacy_vouched_by.
[fix bug 931359] Display list of vouchees on profile page.

 * Display list of vouchees on profile respecting profile privacy of
   each vouchee
 * Cleanup h-card support
 * Add .profile-entry to tag each profile entry.

Credits for ideas and previous work to
 - https://mozillians.org/en-US/u/bharath/
 - https://mozillians.org/en-US/u/jarekps/
[fix bug 1008927] Fix basket unsubscribing from /admin.
[fix bug 944798] Converted all <legend> to <h2> in profile edit section
Merge pull request #950 from anushbmx/master

[fix bug 944798] Converted all <legend> to <h2> in profile edit section
Merge pull request #942 from glogiotatidis/profilesprivacy

List of vouchees.
Merge pull request #949 from glogiotatidis/1008927

[fix bug 1008927] Fix basket unsubscribing from /admin.
Bug 1004311 Fixed logout button style.

Fixed css id to correct the button style.
Merge pull request #955 from chefscott/logout_button

Bug 1004311 Fixed logout button style.