CA-138822: Improvements to the Host/Pool Storage tab, following on from the TRIM work

- Show tooltip on "Reclaim freed space" button on multiselect

Signed-off-by: Mihaela Stoica <mihaela.stoica@citrix.com>
CA-138293: Added vCPUs_max to the VM General tab (shown only if is different than VCPUs_at_startup)
CA-140647: Customer is not getting the list of updates when ever they select the "Check for Updates" option from the tools menu within Xencenter.
-Added 'Host:' to HTTP headers for all the HTTP GET and PUT requests sent by XenCenter.
This change will presumably fix network issues occurring when going through certain corporate firewalls/proxies.

Signed-off-by: Gabor Apati-Nagy <gabor.apati-nagy@citrix.com>
Merge pull request #130 from MihaelaStoica/CA-138822

CA-138822: Improvements to the Host/Pool Storage tab, following on from ...
Merge pull request #134 from MihaelaStoica/CA-138293

CA-138293: Added vCPUs_max to the VM General tab (shown only if is diffe...
Merge pull request #131 from GaborApatiNagy/xs64bit-CA140647_2

CA-140647: Customer is not getting the list of updates when ever they se...
Merge pull request #135 from MihaelaStoica/xs64bit

CP-8120 Cores-per-socket: When building the topology list ignore the max...