Remove users.email column in the database
Add preview picture when browsing a photo and which is not uploaded yet
Merge pull request #327 from CruGlobal/MH-907

Remove users.email column in the database
Merge pull request #326 from CruGlobal/MH-967

Add preview picture when browsing a photo and which is not uploaded yet
Upgrade highcharts; Label number tweaks
Merge branch 'master' of github.com:CruGlobal/missionhub
Re-enable tooltips
Chart calculation fixes
Charts take into account archived people
Validate person email when assigning as Admin or User
Merge pull request #328 from CruGlobal/MH-968

Validate person email when assigning as Admin or User
Apparently some javascript stuff doesn't work right unless this is commented out
Handle errors when creating or changing permission
Merge pull request #329 from CruGlobal/MH-968

Handle errors when creating or changing permission
Take archived contacts into account when reporting stats
Fix relation error
Able to delete logo for survey and add guide for upload file format