Added fix for unmatched instance metadata attributes hostname, local-hostname - EUCA-4329
Add mac address to instance metadata - EUCA-1555

EUCA-1555
Metadata service now tolerates extra /s - EUCA-5256

Instance metadata now permits extra /s in paths as is sent by some tools
(ec2-metadata)

EUCA-5256
Metadata service now supports 1.0 version - EUCA-5584

EUCA-5584
Metadata service now lists metadata versions - EUCA-1556

EUCA-1556
Merge remote-tracking branch 'harold/metadata-hostname-fix' into dev/sjones/meta-pimp
Merge branch 'dev/sjones/meta-pimp' into maint/3.3/testing