added krb5 features

added gsstsig to replace TSIG key when needed
Fixing path to oo-admin-cartridge
WIP Cartridge Refactor - Support V1 contract for CLIENT_ERROR
Merge pull request #1919 from danmcp/master

Cleanup
Merge pull request #1854 from markllama/dev/plugins/dns/nsupdate-krb5

Merged by openshift-bot
Merge pull request #1907 from brenton/spec_fixes1

Merged by openshift-bot
Merge pull request #1920 from jwhonce/wip/client_error

Merged by openshift-bot
Set sync on STDOUT/STDERR in gear script

The gear script is assumed to be interactive. Enable sync on the STDOUT/STDERR
objects to ensure output is line-buffered.
Merge pull request #1924 from ironcladlou/dev/v2carts/gearscript

Set sync on STDOUT/STDERR in gear script