1. add a @group dev for develop the tests or debugging use.
2. add delete commands to 2 functions which will delete the admin user created during the test. 
3. commands out a test with special character which will failed the test as ? char can't be in the searching box to search, this could be an issue with our system, need more investigation.  
generally those test cases should be working fine.
created a new test method which will repeat deletes those admin users which contains first_name = john and last_name = doe.
this new test will be act as tool to delete admin users which contains johndoe in emaill field.
add admin as prefix to those mac as need this to be added otherwise all of tests related to those pages will fail.
fixes in admin user areas

I have done several changes to make the add admin users, login at admin
page and delete admin users test cases to match Kathmandu web pages.
Merge pull request #1 from Philliman/WinBoxDevTest001-tag

Win box dev test001 tag