Changed selector for signup webelement: id->class
Merge pull request #43 from DentonA/master

Changed selector for signup webelement: id->class
SignUpWasSuccessful dialog waiting was edited

It was reworked the method of waiting of this dialog to appear. For low
connection situation, it was added the additional check.
Merge pull request #44 from DentonA/master

SignUpWasSuccessful dialog waiting was edited
PM tests business and webdriver layers added