Fix typo for --auto-bootstrap long option
Adds new version semantics: stable, oldstable, and testing.
Use the GITHUB_TAGS variable
Make nodetool command work with ipv6 nodes

nodetool appears not to handle ipv6 addresses properly.
Patch submitted:
https://issues.apache.org/jira/browse/CASSANDRA-7669

In the mean time, ccm can use 'localhost' in the nodetool commmand. This
allows the nodetoll jmx url to format properly, and the address to
resolve.
*CAVEAT: user must have <ip> localhost entires in their 'hosts' file for
any node to be commanded.
Merge remote-tracking branch 'upstream/master' into ipv6-support
Adding support for IPV6 addresses

- new ipformat argument for supporting link-specific addresses
    --ip-format='fe80::1%lo0'
- existing api default functionality unchanged
- common.check_socket_available now works with ipv6 addresses
- ipv6 addresses are expanded to match host format from cassandra

also fix arbitrary typo in common.parse_settings
Break after replacing IPv4 option once
Guard against None itf in normalize_interface
simplify zeros string generation in normalize_interface
Stop writing empty stderr
Merge branch 'stderr'
Fixes #81

Running ccm updateconf no longer removes
topology configuration
Fixes #3

Jmx port is validated at node add.
Fixes #146

Passing in --vnodes in create, then populating separately
is no longer supported. This was causing bugs with num_tokens
being set incorrectly.
Merge pull request #137 from EnigmaCurry/version-tags

New version semantics: stable, oldstable, and testing.
Merge branch 'master' of https://github.com/pcmanus/ccm
Fix typo
Merge pull request #84 from thobbs/fix-auto-bootstrap-option

Fix typo for --auto-bootstrap long option
More bootstrap typo changes
Fixes #57

Corrected if check for updateconf arguments. Was previously
casting to bool, then using variable as string.