find_instance: suggest close matches

If no exact match is found for the given instance name, search for
instances with names for which the given name is a prefix, and suggest
these instances.
Merge pull request #38 from kraman/build_vm

Merged by openshift-bot
Adding avahi package to RHEL ignores
on sync we don't want the local RPMs to interfere with the tito built RPM
Merge pull request #39 from brenton/master

Merged by openshift-bot
Fixing output when running tests from client
Merge pull request #40 from danmcp/master

Fix the ssh output issues
Add write_hostname method
handle grep returning nothing better
Was causing syntax error in selinux update.
Fixing terminate condition for VM build task.
Adding RHEL v2 carts to ignores list for fedora
Merge pull request #42 from rmillner/build_fixes

Merged by openshift-bot
Enabling 3 retries for origin builds
Additional RHEL v2 carts to ignore for F18
Merge pull request #43 from kraman/master

Merged by openshift-bot
add cart to cart repo as part of sync
Merge pull request #45 from danmcp/master

Add sync of v2 carts
add longer retries
RHC tests fixes