moved angular 1.0 and angular-scenario files to legacy folder
fixed path issues in 1.0 files. Verified that angular-scenario is still a part of angular dist : http://code.angularjs.org/1.2.1/ so left it inside angularjs folder
Merge pull request #1286 from borisyankov/angularjs-movetolegacy

moved angular 1.0 and angular-scenario files to legacy folder