Merge from Perforce
aDefine the keyword to create Proxy AAA server
Add the relative test cases in mac auth type
Rename the test case
Add the test case of Roaming Scenario (connect to another wlan) in SZ-100
Add the test case of Roaming Scenario (connect to another wlan) in SCG-200
Fix the script issues
Add the test case of wlan tempalte in SCG-200
Remove the useless files