name changes
package
include release notes
tag batch file
remove images
extract failed message
error handling
extra slash
name change

the extract file is now called "exxtract" to avoid confusion with the
setup scripts.
more copyright stuff
file handling
Id the release
Instruction clarification
some updates including copyright clarification
Merge branch 'master' of https://github.com/sbillard/DevTools20-DEV into sbillard-master

Conflicts:
	tag.bat

	modified:   createziparchive.php
	modified:   git_head.bat
	deleted:    images/20 ativar.png
	modified:   plugins/pseudomail.php
	modified:   plugins/zenphoto_package.php
	modified:   plugins/zenphoto_package/zenphoto_package_generator.php
	modified:   tag.bat
	modified:   upstream.bat
	modified:   upstream20.bat
	modified:   upstreamXX.bat