Instance migration actions now handled by compute service - EUCA-8909

Messages and bindings are added to the user facing compute service in
support of instance migration.

EUCA-8909
Instance migration actions now support personas - EUCA-8910

The authorization check for instance migration now support personas
roles. The infrastructure administrator role is updated to allow
instance migration.

EUCA-8910
IAM policies now allow any syntactically valid vendor/action - EUCA-8959

EUCA-8959
STS GetSessionToken action now truncates duration for admins - EUCA-8958

When the requested token duration is greater than one hour but less than
the maximum permitted duration it is now treated as if one hour had been
requested rather than failing with an error.

EUCA-8958
EUCA-8835 Postgresql log entries now have timestamps
Merge remote-tracking branch 'jeevanullas/testing' into dev/sjones/EUCA-8835
Merge remote-tracking branch 'origin/dev/sjones/EUCA-8835' into testing
Merge remote-tracking branch 'origin/dev/sjones/EUCA-8909' into testing
Merge remote-tracking branch 'origin/dev/sjones/EUCA-8958' into testing
Merge remote-tracking branch 'origin/dev/sjones/EUCA-8959' into testing

Conflicts:
	clc/modules/msgs/src/main/java/com/eucalyptus/auth/policy/PolicySpec.java