#299: Adding user info

Added number of logins, last login and confirmed info. Last update seems
irrelevant as date changes once user logs in.

TODO: Language handling, timezone handling.
Deleting comment

I realise ushahidi knows how to handle timezones. :)
Revert "Merge pull request #1218 from ditorelo/1213b"

This reverts commit 0d313c1b3e13430e64d60d05d0f681850cbd95c6.
Related to #1218 #1233
Normalize json markers to object #1233
#538: Delete all reports

"Delete All" subtab add to the reports tab so superadmins can delete all
reports from database.

TODO: Have to style page properly. Still a noobie, already made a mess
today, couldn't figure out how to generate translation files and decided
to take it easy. :)
Updating code to handle localizations
Making it so only superadmins can delete all report
Renaming files according to standard
Updating permission to delete all reports
Updating SQLs with new permission
Updating DB queries to truncate data
Simplifying $_POST check
Fix delete all link
Add localizations for delete all reports fn
Update db_version in version.php - forgot to update for delete-all permission
Add i18n files for #299
Merge branch '299' into develop

Conflicts:
	application/views/admin/users/edit.php
Disable combining/compressing files by default

This occasionally causes weird issues - disabling since Ushahidi works ok without it, and we want to avoid confusing users who don't know how this works. Related to #1235
Updating MySQL distance calculations to use metric (#921)

MySQL geo distace calculation functions currently return results in miles
instead of kms. Multipliying result of function by 1.609344 should fix the
issue.

Dev Note: Tested with a few situations with the report search and report
view pages, which seems to yield the correct results. However, I'm not
entirely confident I was able to explore all use cases for the
Incident::get_incidents() and Incident::get_neighbouring_incidents().
Merge pull request #1234 from rjmackay/develop

Fix json_controller::calculate_center() for both core and sharing plugin