Chunkserver down error Bugfix

Changed the connection routine for the chunk servers. If a server is
down the module will fail with an exception raised by the socket module.
In this fix the exception will not be handled it does only a stepover to
the next host in the list.
Changed tabs into single spaces.
Merge pull request #3 from ffranklyn/skipOfflineHosts

Chunkserver down error Bugfix