Merge pull request #26 from codylane/master

fixed bug with logout() method
Fixed NSNitro.login() error reporting

Fixes #27
Merge pull request #28 from codylane/master

Fixed bug in nsnitrocmd.py
Fix: Wrong serialization of the payload
iptunnel implementation
Add support for IPv4 routes and PBR resources.
Merge pull request #30 from ndenev/master

Add support for IPv4 routes and PBR resources.
Merge pull request #29 from atopuzov/master

Wrong serialization of the payload
Merge branch 'master' of https://github.com/favoretti/nsnitro
Fix: get_sysname function definition
Add: NSIPTunnel
Fixed indentation and excessive spaces
fixed bug with logout() method that caused sessions to remain open in the netscaler.
Fixed NSNitro.login() error reporting

Fixes #27
added much-needed nitro.logout() calls to each cmd in nsnitrocmd.py to avoid session leaks.
fixed indentation issues
Fix: Wrong serialization of the payload
Add support for IPv4 routes and PBR resources.
iptunnel implementation
Fix: get_sysname function definition