Minor improvements
Merge branch 'addchallenges' of github.com:boersmamarcel/challengesplatform into addchallenges
Let's remove Marcels keys real good...
Changed definition of a "denied" challenge
It now checks whether a challenge is a proposal for the second (or more) time (-> count)
new websteps

Conflicts:
	features/dashboard_participant.feature
	features/step_definitions/login_steps.rb
Fixje
Tests added
Added editing-restrictions and more...
Merge branch 'addchallenges' of github.com:boersmamarcel/challengesplatform into addchallenges

Conflicts:
	features/step_definitions/login_steps.rb
Removed ambiguous match for supervisor login
Challenge view
Merge branch 'addchallenges' of https://github.com/boersmamarcel/challengesplatform into addchallenges
Hide useless links & correct url
Merge branch 'addchallenges' of github.com:boersmamarcel/challengesplatform into addchallenges
Removed inappropriate tests
Completes the challenges branch
Adds merge with addchallenges