PHP version number in composer.json

Changed PHP version number in composer.json from fixed value 5.3.18
to range >=5.3.18,<6.0.0
This allows composer, grunt etc to run with the latest versions of
XAMPP which include PHP version 5.4.x
Limited compatibility to 5.x.x in case PHP 6.0 changes something
dramatically.
Merge remote-tracking branch 'redaxbase/master'

Conflicts:
	composer.json
Merge branch 'master' of git://github.com/redaxmedia/redaxscript
Changes to editor module to better handle code sections
Merge branch 'master' of git://github.com/redaxmedia/redaxscript
OOP breadcrumb class, with basic unit tests.
Still using PHP constants, this is the first stage with crude unnit tests to check the logic
and provide a framework for the future.
Changed breadcrumb to use constants class
Added constants class
Still work in progress!
Changed constants to singleton, fixed breadcrumb constructor
minor fixes to breadcrumb and renamed constants to registry
tidy breadcrumb and add tests for registry
cosmetic tidy-up
fixed stubs include path
added unit tests for captcha
undo editor changes
Merge remote-tracking branch 'redaxbase/master'
tidy up test files
Merge pull request #112 from GaryA/master

merge OOP breadcrumb and unit tests