update to version v1.1.13
* Fix TypeError when krb5-config is not present
* Don't free stack allocated buffer #15
* Bump version to 1.1.11
* Fix reference to undefined command_name variable
* Remove reference to undefined popenargs variable
* Increment version to v1.1.13
* Address endless loop in case neither krb5-config nor krb5-config.mit are found
* remove deprecation warning for clean methods
* Add travis config
* replace explicit client credentials to gss_init_sec_context
* Increment version to 1.1.12
* Add a dummy test script
- Use pypi.io as Source url