use new active record finder syntax
Account for nil directory entries in FS code.

Modify Ext3, Ext4 and XFS filesystem code to filter out nil directory entries.

https://bugzilla.redhat.com/show_bug.cgi?id=1170320
https://bugzilla.redhat.com/show_bug.cgi?id=1170319
Upgrade to SASS 3.4.9
Add new AWS Region EU Frankfurt

https://bugzilla.redhat.com/show_bug.cgi?id=1164033
drop support for passing VirtualColumn and Reflection objects

no app code ever passes virtual column or reflection objects to the
add_* methods, so we don't need to support that case.
Specs use case insensitive fqname for comparison

Automation engine uses lowercase names for domains, namespaces
class, instances and methods. It can be refered to in mix case in
the models. The fqname is critcal to locating files in the new
git based automated model, by having mixed case the search takes
longer so we are planning on using all lowercase name when storing
files in git and the fqname becomes all lowercase.
Saved reports view: fix missing icon error

PR #841 removed view_textual.png from sources, although this
icon was still being referenced from saved reports view, causing
the following error:

Started GET "/images/toolbars/view_textual.png"
No route matches [GET] "/images/toolbars/view_textual.png"
...

view_list.png is identical to view_textual.png, so let's
use that icon instead.
Remove "initialize" method from StorageManager model.

The initialize method of the StorageManager model class was calling super()
and in so doing, not passing the proper args to the subclass. Given
this was all the method did, the entire method has been removed.

https://bugzilla.redhat.com/show_bug.cgi?id=1171286
https://bugzilla.redhat.com/show_bug.cgi?id=1171899
revert sass gem to 3.1.20
Issue: #1200
Fix session store on metric_fu environment
Merge branch 'master' into rails4

* master:
  Fix session store on metric_fu environment
  revert sass gem to 3.1.20 Issue: #1200
  Remove "initialize" method from StorageManager model.
  Saved reports view: fix missing icon error
  Specs use case insensitive fqname for comparison
  drop support for passing VirtualColumn and Reflection objects
  Add new AWS Region EU Frankfurt
  Upgrade to SASS 3.4.9
  Account for nil directory entries in FS code.

Conflicts:
	vmdb/spec/lib/extensions/ar_virtual_spec.rb
update the logger to use the newer method signatures
change virtual colums to use delegation
update dependencies
use newer active record syntax
Revert "update dependencies"

This reverts commit 1ed6879b2adde7f3e1dd8ef882b7a4420be3a92a.