Merge pull request #2 from Random-Host/unittests

moved to new GitHub organization
- add randomhost\Image\Text\Text interface
- add randomhost\Image\Text\Generic class as replacement for previous randomhost\Image\ImageText
- add randomhost\Image\Text\Decorator\Generic
- add randomhost\Image\Text\Decorator\Border
- add randomhost\Image\Color
- add randomhost\Image\Image::mergeAlpha() for merging images with modified alpha value
- remove text related functionality from randomhost\Image\Image
- add PEAR changelog entries
- set project stability to 'beta'
- increase version number to 0.2.0
- set project stability to 'alpha'
- set API stability to 'alpha'
Merge pull request #3 from Random-Host/revamp

Revamp