Add client/server thread config to fix netty transport unit tests.
add generation of a .tar.gz to release script
fix download URL in the 'storm' command
add *.tar.gz to .gitignore
Merge pull request #755 from ptgoetz/fix-netty-tests

Fix netty transport unit tests
Ensure we don't overflow the backoff value.

The first attempt to fix this (213102b36f890) did not correctly address
the issue.  The 32 bit signed integer frequently overflows, resulting in
a bad value for Random.nextInt().

The default for storm.messaging.netty.max_retries is now 30 (instead of
100), and there is an upper limit of 30 for max_retries.

I also did a whitespace cleanup.
Merge pull request #726 from brndnmtthws/nm

Ensure we don't overflow the backoff value.
Merge branch 'release-cleanup'
bump version for 0.9.0 release
update changelog for 0.9.0 release
update build to force Java 1.6 compatibility.
bump version, update changelog for 0.9.0.1 release.