remove LICENSE file in octicons, cause we do not serve it
remove useless txt file in yui v3.3.0, cause we do not serve it
remove useless ChangeLog.txt & ReadMe.txt in webshim, cause we do not serve it
remove useless txt file in mathjax, cause we do not serve it
remove useless LICENSE.txt in codemirror, cause we do not serve it
remove useless version.txt in ionic, cause we do not serve it
remove useless _translationstatus.txt in ckeditor, cause we do not serve it
remove useless license.txt/readme.txt in openlayers, cause we do not serve it
remove useless license.txt in aui, cause we do not serve it
remove useless version.txt in angular.js/1.3.0-beta.9, cause we do not serve it
remove useless license.txt in canvasjs, cause we do not serve it
remove useless LICENSE.txt in topcoat v0.8.0, cause we do not serve it
remove useless txt files in tinymce, cause we do not serve it
remove useless txt files in fatcow-icons, cause we do not serve it
remove useless EPSG900913.txt in proj4js v1.1.0, cause we do not serve it
remove useless license.txt in geoext v1.1, cause we do not serve it
remove useless README.txt in extjs v3.4.1-1, cause we do not serve it
remove useless license.txt in ootstrap-formhelpers v2.3.0, cause we do not serve it