Bump Ruby version to 1.9.3

OS X 10.8 doesn't have a build, and for some reason RVM doesn't want to build it from source:

	$ rvm install ruby-1.9.2-p320
	No binary rubies available for: osx/10.8/x86_64/ruby-1.9.2-p320.
	Continuing with compilation. Please read 'rvm mount' to get more information on binary rubies.
	The provided compiler '/usr/bin/gcc' is LLVM based, it is not yet fully supported by ruby and gems, please read `rvm requirements`.
raise version to 0.3.8.dev
updating Fedora 19 x86_64 source url, iso filename and sha1 sum

updating Fedora 19 i386 source url, iso filename and sha1 sum
Spelling: veevee -> veewee
Merge pull request #755 from elovelan/patch-1

Spelling: veevee -> veewee
Merge pull request #749 from r0b0ticus/master

updating Fedora 19 i386 source url, iso filename and sha1 sum
fix typo in providers link
Added .project to .gitignore
Merge pull request #766 from ekrupnik/master

Added .project to .gitignore
correct typo veterean -> veteran
Merge pull request #771 from jobyh/master

correct typo veterean -> veteran
ignore .ruby-version
Fixed doc/requirements.md to include PowerShell and PowerShell Community Extensions under Windows

1) Fixed doc/requirements.md to include installing PowerShell and the PowerShell
   Community Extensions (PSCX) under Windows. PowerShell is used for scripting
   under Windows, and PSCX supplies several necessary cmdlets including
   Write-Tar.
Merge pull request #764 from 3flex/fix-providers-typo

fix typo in providers link
Merge pull request #730 from datenbetrieb/master

Set Version in master to 0.3.8.dev
Allow for case insensetive MAC addresses

arp returns MAC addresses in all-caps on certain platforms, so the IP address is never detected because Veewee provides it in lower-case.  This should take care of this.
Merge pull request #775 from mnaser/patch-1

Allow for case insensetive MAC addresses
Point Cygwin download to x86 version of exe (as they now have distinct 32/64 bit versions)
Actually set root password in freebsd-9.X templates
add improved Oracle Linux 6.4 x86_64 definition