Merge pull request #181 from vedujoshi/master

Remove the extra http string in webserver
Merge pull request #182 from vedujoshi/master

Import missing ConfigParser
Merge pull request #183 from vedujoshi/master

Disallow a duplicate detach of subnet from router
Making concurrency to 4
Moving/remving files from scripts
Changing the path for analytics_tests.py in connections.py
Merge pull request #185 from sandip-d/master

Moving/remving files from scripts
Fix link local testcase for multi-interface tests