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.
Update vm builder script to generate ovf instead of vbox package.
Update vm builder script to generate ovf instead of vbox package
Update docs generation and add node/cartridge guides
https://trello.com/c/yUMBZ0P9
Merge pull request #48 from kraman/gen_docs

Update docs generation and add node/cartridge guides
Merge pull request #16 from Miciah/find_instance-suggest-close-matches

Merged by openshift-bot
add get detached volumes method
cleanup unused snapshots and volumes
lower interval for cleanup
add as7 cart to fedora packages
Merge pull request #49 from bdecoste/master

add as7 cart to fedora packages
Fix doc generation issue
add download artifacts option to terminate
Merge pull request #50 from danmcp/master

Merged by openshift-bot
fixing download artifacts on terminate
add more retries around update remove tests