set version to 2.0
remove unused file
change option key
remove unused code
clearing workspace
Merge branch 'v2.0' of https://github.com/bueltge/Adminimize.git into
v2.0

Conflicts:
	classes/plugin_starter.php
refactor PluginHeaderReader
add tests
tests for ExtendedStandardClass finished
add codecoverage
tests for FileHeaderReader finished
add tests
add tests
temporary finish tests menupage_widgets_sapi.php
large refactoring
replace Adminimize_Data_Container with Adminimize_Storage
add tests
refactor PluginHeaderReader
add tests