Harden test_crud tests

* Sometimes in a /24 subnet, picking a random ip for a port used to
choose an IP which is already created. So, use /16 subnet to be more
deterministic
* Use right variable in a log message
* Avoid deleting an already deleted object (router/subnet/port/network)
Merge remote-tracking branch 'upstream/master'
Provide Distro detail in the sanity test report

Populate report_details.ini with Distro as well as openstack release
info(havana/icehouse)
Merge pull request #148 from vedujoshi/master

Harden test_crud tests
Module name changed for control node
Merge branch 'master' of github.com:bhushana/contrail-test
Fixing the issue that emain subject not taken from environment variable
Import os module before using it
Merge pull request #155 from vedujoshi/master

Import os module before using it
Show the right links in report

* Use report_details file in send_mail.py to get distro/sku detail
* Fix html link generation in report_gen.py
Merge pull request #156 from vedujoshi/master

Show the right links in report
Using config get instead of read
Merge pull request #158 from sandip-d/master

Using config get instead of read
Fixing merge conflicts
Merge remote-tracking branch 'upstream/master'

Conflicts:
	tools/report_gen.py
	tools/send_mail.py