add subtree

src/closure/README.md

src/closure/conf/depswriter/closurebuilder.py

src/closure/conf/depswriter/depstree.py

src/closure/conf/depswriter/depstree_test.py

src/closure/conf/depswriter/depswriter.py

src/closure/conf/depswriter/depswriter_test.py

src/closure/conf/depswriter/jscompiler.py

src/closure/conf/depswriter/jscompiler_test.py

src/closure/conf/depswriter/source.py

src/closure/conf/depswriter/source_test.py

src/closure/conf/depswriter/treescan.py

src/closure/conf/externs/angular-1.3.js

src/closure/conf/externs/bingmaps.js

src/closure/conf/externs/bootstrap.js

src/closure/conf/externs/geojson.js

src/closure/conf/externs/html2canvas.js

src/closure/conf/externs/jquery-1.9.js

src/closure/conf/externs/jspdf.js

src/closure/conf/externs/vmap.js