10.9 CLI tools has same name as 10.10, simplifies xcode-cli-tools.sh

- as of 6.0, CLI tools for 10.9 are now named the same as 10.10 tools
- 10.10 tools (at this very moment) actually get listed four times, so add a 'head -n 1' to just take the first result.
  - this is probably temporary until Apple consolidates their updates in their sucatalog
Cleanup script whitespace
Mor details about prepare_iso

How it needs to be run from clone.
Snow Leopard issue.
Merge pull request #20 from gotcha/patch-1

More details about prepare_iso
Build veewee-config.pkg as a Distribution package

- workaround for bug in Yosemite Installer (rdar://18491441, rdar://18493263)
- does not make a successful 10.10 install, but needs to be done regardless
Fix to keep only lines with *

Was broken with following  `softwareupdate -l` output:

Software Update Tool
Copyright 2002-2012 Apple Inc.

Finding available software
Software Update found the following new or updated software:
   * 031-00536-5.1.0.0
        Command Line Developer Tools for OS X Mavericks (5.1.0.0), 121492K [recommended]
   * Safari7.1Mavericks-7.1
        Safari (7.1), 59574K [recommended]
   * Command Line Tools (OS X Mavericks)-6.0
        Command Line Tools (OS X 10.9) (6.0), 104398K [recommended]
   * iBooksDelta-1.0.1
        iBooks Update (1.0.1), 14334K [recommended]
   * iTunesXPatch-11.4
        iTunes (11.4), 94992K [recommended]
Added parallels support
Merge pull request #22 from ayufan/topic/parallels

Added Parallels support
Fix user path for prl-tools
Initial support for building Yosemite guests

- In addition to growing BaseSystem and copying over Packages, we
  also copy the BaseSystem dmg and chunklist files to the root
  of this new grown BaseSystem (yes, a copy of its original at the
  root of itself).
  - My guess would be that this is so that the installer can use
    these to do recovery partition-related tasks, verification, etc.
    because without it, the installer would fail complaining that
    it could not verify the recovery partition.
  - Cribbed from the 'convert_mavericks_image' script from
    Parallels 10 - a much simpler approach than VMware Fusion's
    approach of setting up a second disk with a custom boot config.
- Fixes #17.
pkg postinstall ssh enable: new launchd overrides path on 10.10