bug #2107: VLAN_ID input is not shown when selecting OvSwitch
Remove websocket.pyc
Bug #2116: VMFS removes persistent images
bug #2104: delete unused persistent disk links
(cherry picked from commit 13d719a2b391cf8836ae3b264aa51a6819e58a0a)
Default marketplace URL uses http instead of https
bug #2128: datastore file scripts are not executed in context

init scripts execution is moved to an external one-context.d script.
Now there is a new context variable (INIT_SCRIPTS) with the list of
files to execute from context.
feature #2097: VMFS DS drivers using ssh protocol
feature #2097: Solves mkfs bug when fstype is "correct"
feature #2097: VMFS TM driver now uses SSH protocol to handle disk images.
feature #2097: Fix error in mvds
feature #2097: Improve CD management for MVDS
Feature #2097: Get rid of VMware specific code in TM shared
feature #2097: Remove VMware DS drivers from the installation and configuration file
feature #2097: Delete sometimes in TM shared has to deal with directories
feature #2097: Re-add disk_type function
feature #2097: Always important to have proper comments
feature #2097: VMware context needs sym link
feature #2097: Checks trailing character in ds_location before creating a new datastore. Adds '/' if needed.
feature #2097: Remove more VMware traces from shared TM
Fix error message when connecting to OpenNebula Marketplace