fixed typo
fixed typo
Revert "fixed typo"

This reverts commit ef19b5bb7dcb82a00f019a4756729f31dcfce249.
Gd adapter can provide information about canvas width, height
Gd adapter refactored now uses new interface
test names refactored
Compatibility break - Image interface has been changed
Refactoring
Canvas calculator - refactoring
PHPdoc