Gravatar should be displayed as default thumbnail for Person

Display only profile sections from profile.members

User edit page should have cancle link which takes back to person_path

Closes ndlib/planning#361

Explicily set phantomjs version

Remove duplicate assertion definition

Expand Rails gem to be ~> 4.0.0

Expand Rails gem to be ~> 4.0.0

Expand Rails gem to be ~> 4.0.0