build:  Add new package dependencies

Add libboost-system-dev (bug #4725).

Add hdparm to rpm installation requirements.  The hdparm
command is used to determin if write-caching is enabled on
the journal device.

Signed-off-by: Gary Lowell  <gary.lowell@inktank.com>
debian/control:  Fix typo in libboost version number

Signed-off-by: Gary Lowell  <gary.lowell@inktank.com>