Resolve "Frontend improvements"

Closes #116 (closed)

changed milestone to %Roadmap WiSe 18/19

added 1 commit

• 2d58f949 - added condition for comment visibility state

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unmarked as a Work In Progress

added 2 commits

• dbe5b9a8 - renamed students to participants
• 7e1fcf63 - added condition for comment visibility state

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added 4 commits

• 246f6154 - renamed students to participants
• 4ca8e07a - changed route in tests
• d2351c69 - changed default value of showfeedback in validation stage
• 2d58f949 - added condition for comment visibility state

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added 6 commits

• 2d58f949...49c457e6 - 3 commits from branch master
• 62f295e3 - re-arrangement of register/login buttons
• cc8ffc0f - renamed students to participants
• 3220395f - added condition for comment visibility state

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merged