Allow renaming of machines.
Fix the profile_string handling in loading the profile from gcode.
Minor cleanup.
Fixed package.sh script interpreter invocation.

Using "/usr/bin/env bash" makes it possible to call bash properly
on various operating systems where the binary location can differ.
Tested on FreeBSD, Darwin, Linux.
Added FreeBSD as the supported platform for package.sh.
Merge pull request #861 from cederom/SteamEngine

Fixed package.sh script interpreter invocation.
Updated firmware for the UM2.
Merge branch 'SteamEngine' of github.com:daid/Cura into SteamEngine
Version 14.06-RC5
Merge branch 'SteamEngine' of github.com:daid/Cura into SteamEngine
RC6
Version 14.06
Fixed #863