Bug 1093598 - Move undo addon unistall test from testEnableDisableUndoUninstall.js to testAddons_uninstallExtension. r=amatei, r=mvelimiroviciu

--HG--
branch : mozilla-beta
rename : firefox/tests/functional/testAddons/testEnableDisableUndoUninstall.js => firefox/tests/functional/testAddons/testEnableDisableExtension.js
rename : firefox/tests/functional/restartTests/testAddons_uninstallExtension/test1.js => firefox/tests/functional/testAddons/testUninstallExtension.js