Merge pull request #33 from herbertd/master

Update metadata service version in google daemon and startup scripts
Support Red Hat Enterprise Linux
Merge pull request #34 from jkaplowitz/rhel

Add Support for Red Hat Enterprise Linux to gcimagebundle
Fix regex bug where suse.distribution was None.
Style fixes.
Fix 0 length bug.
Undo try guarding.
Merge pull request #36 from jeremyje/bugfixes

Bugfixes
Use hanging get to fetch sshKeys
Don't sleep when fetching the list of accounts

We no longer need to sleep since GetDesiredAccounts method now does a hanging get and will not return if there are no changes.
Remove the code which attempted to try for 10 seconds

Also, persist etag for sshKeys across method calls.
Add a new flag to specify if accounts manager should make a single pass or run in loop
renaming single_attempt variable to single_pass
Switching to use single-pass flag instead of interval
Use single-pass flag in the one shot run
Fixing typo
fixing flag
fixing the way we pass single-pass flag
Pass the etag for sshKeys from child to parent process
Added logging for passing etag to parent