remove support for dropbear from the launcher
Replace tabs with spaces.
remove old files
add .gitignore
first pass at the new dockerfile
update build & build scripts

Fixes the cqlsh issue. Sets things up for the new entrypoint.

Contains a temporary workaround for the apache mirrors being messed up.
check in the new entrypoint

This entrypoint is written in Go and uses
https://github.com/tobert/sprok to start processes.
Check in base configs for Cassandra 2.0.11.
run as user:group 1337:1337

Added support to sprok for uid/gid in
https://github.com/tobert/sprok/commit/7830394aa1c0cdc324dbaf032ea284c25ad7f569

Use that and added a chownAll that sets permissions on the writeable
directories for Cassandra.

All commands, including Cassandra are run as the same user.
copy conf to the right location
update the README.md for the new entrypoint
rename stress to match what everyone knows
add symlink command support, ~/.cassandra, rename stress

Added symlink support so the entrypoint can be linked to the command
name to make it capture commands coming in via docker exec or on the
shell in debug sessions. e.g. `docker exec -it $ID cqlsh` is a symlink
from /bin/cassandra-docker to /bin/cqlsh. See also: Dockerfile, where
the symlinks are set up.

The entrypoint also creates /data/.cassandra and sets permissions on
it to keep cqlsh happy. It will probably also be handy to persist
the history.

Everyone knows cassandra-stress as cassandra-stress so leave it with
that name instead of calling it 'stress'.
set up entrypoint symlinks

Also combined the 3 RUNs for setting up the user/group.
document how to run cassandra commands
remove dead code
add some ignores