use SIGKILL instead of default signal
add alias support (alias@host:port) to hosts list - similar to memcache collector
sanitize Haproxy metric names. Closes #370
cpu: log error when necessary psutil module could not be imported

refs #355
diskspace: log error when necessary psutil module could not be imported

refs #355
diskusage: log error when necessary psutil module could not be imported

refs #355
memory: log error when necessary psutil module could not be imported

refs #355
network: log error when necessary psutil module could not be imported

refs #355
processresources: log error when necessary psutil module could not be imported

closes #355
Added docs about for server memory works. Closes #353
PEP8 fixes
Doc updates
Add in a hosted graphite handler
Hard code the port
Import in Handler
Fix config reference
Wrapper more Handler calls
Final fixes to the hosted graphite handler
Added multigraphitepickle like the multigraphite
Fixes #395, this fixes an import error on python 2.4