Fixed invalid state of Parallels Tools
handle_guest_tools: Last chance to get the actual state of Parallels Tools
action/import: Regen SourceVmUuid by nokogiri

Instead of using '--regenerate-src-uuid' while box register, we are doing the same manually,
by editing 'config.pvs' via nokogiri XML library.
config: Renamed option 'regen_box_uuid' to 'regen_src_uuid'
Fixed unit tests
Merge pull request #159 from Parallels/f-regen_src_uuid

Fixed regenerate SourceVmUuid
Gemfile: Constraint vagrant revision by tag
Version bumped to 1.3.5
Release v1.3.5

* master:
  Version bumped to 1.3.5
  Gemfile: Constraint vagrant revision by tag
  Fixed unit tests
  config: Renamed option 'regen_box_uuid' to 'regen_src_uuid'
  action/import: Regen SourceVmUuid by nokogiri
  handle_guest_tools: Last chance to get the actual state of Parallels Tools
  Fixed invalid state of Parallels Tools