style cleanup - removed fieldsets, etc

Issue #1491
converted tabs to spaces, aligned hash rockets, adjusted formatting

Issue #1491
Update table footer in the Provisioning Dialog screen

Table footer 'Sort by' is updated, when user wants to sort a table column

https://bugzilla.redhat.com/show_bug.cgi?id=1114744
Convert partial x_pagincontrols to HAML
Merge pull request #301 from epwinchell/iso_style_cleanup

Iso style cleanup
Merge pull request #306 from jzigmund/bz1114744

Update table footer in the Provisioning Dialog screen
Remove Support for VixDiskLib 5.1.0

VixDiskLib 5.1.0 has a known bug intermittently causing a
segfault during disk open operations when the vCenter Server
does not provide an SSL thumbprint for the target host.  The
error depends upon the memory content.  This segfault has been
encountered during testing so support for this version has
been removed.  Only this version has this flaw.

Add capability to easily add other unsupported versions along
with a concise reason to be printed to the log.