Changed all submit_tag to button_tag

Tested on IE (7,8,9 & 10) , FF, Safari and Chrome

Tested functions - Claim Submit and Sign In process. Assuming other submit buttons should work as they are same
use debugger or byebug dependent on ruby version
(debugger isn't supported by ruby >= 2)
use debugger or byebug dependent on ruby version
(debugger isn't supported by ruby >= 2)
Merge branch 'develop' of https://github.com/xithan/wagn into develop

Conflicts:
	features/step_definitions/wagn_steps.rb
Merge pull request #183 from srivig/origin/develop

from srivig/develop - Changed all submit_tag to button_tag
Merge pull request #184 from xithan/develop

use debugger or byebug dependent on ruby version
more merge conflict resolution