Further simplifications to OSX makefile
Fix issue 9392 - Misleading text about required OS version.

* Update the license
* Bump the minimum system requirements for Mac OS X to
Snow Leopard (10.6)
removed the option to create dmd1 packages
reinclude html and samples on all Linux packages
add Windows builder for Debian
Windows package includes all needed files (don't download any file)
fix version number
ensure that installer is run as administer
fix minor stuff
Add a reference to the Windows installer source
Update references on "readme" file
check packages instead of commands
update build_all.sh help
Allow to easily handle "RELEASE" version.
Update rpm/arch source path.
Remove release from version in Windows package built in Linux (all included Windows installer)
Remove "apt" from build process
Update "build_all.sh" script
Add "v2" on Linux scripts help screen
Remove unneeded files in html folder
Fixed uninstallable rpm packages on Fedora 18
Improved version checking