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 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
ignore ceylon cart
Merge pull request #51 from bdecoste/master

Merged by openshift-bot
Fixing syntax/logic error in Origin devenv script
handle syncing v2 carts from li as well
Merge pull request #52 from brenton/devenv_fixes1

Merged by openshift-bot
Adding ceylon cartridge to ignores list for F18 build