Remove unused cucumber step

[#1814]
Remove unused cucumber step

[#1814]
Move code into manage_users_page

[#1814]
Remove unused cucumber steps

[#1814]
Use single-quoted strings where possible

[#1814]
Merge pull request #643 from zoodor/1814-mark

Clean-up for the cucumber test steps [1814 mark]
Merge pull request #644 from rdsubhas/master

Fix one pending error message on the server
Updated README and CONTRIBUTING