Dedupe source maps

[papandreou]

Turning on source maps when building yeoman.io yieds a static folder containing:

00_Finished_TodoMVC_app.17f395442f.png      npm-logo.7d011656cf.png                     yeoman-5315.6cc480e27a.map                  yeoman-5353.a4780b8280.map
02_yo_interactive.417cefe120.png            rocket.d4b0456a40.png                       yeoman-5316.a4780b8280.map                  yeoman-5354.6cc480e27a.map
03_yo_end.da7dbb902c.png                    social-feed.ad4bea7819.svg                  yeoman-5317.6cc480e27a.map                  yeoman-5355.52ec788454.map
03_yo_interactive.ed3e781af2.png            social-github.89959ef390.svg                yeoman-5318.a4780b8280.map                  yeoman-5356.a4780b8280.map
03_yo_run_generator.627d0acefc.png          social-gplus.5223e7bc73.svg                 yeoman-5319.6cc480e27a.map                  yeoman-5357.6cc480e27a.map
03_yo_select.fc1c4b50a6.png                 social-twitter.c359540fc8.svg               yeoman-5320.a4780b8280.map                  yeoman-5358.52ec788454.map
04_tree_view.454ddff511.png                 tasks.c4b5a0c9f3.jpg                        yeoman-5321.6cc480e27a.map                  yeoman-5359.a4780b8280.map
05_after_live_reload.cfbf2c624a.png         technologies-gga.e534cdd81e.png             yeoman-5322.a4780b8280.map                  yeoman-5360.6cc480e27a.map
05_before_live_reload.dbf2122ccf.png        tech_stack.df19d29644.png                   yeoman-5323.6cc480e27a.map                  yeoman-5361.52ec788454.map
05_run_preview.dab09d4a40.png               tool-yo.4ed95cac73.png                      yeoman-5324.a4780b8280.map                  yeoman-5362.a4780b8280.map
06_run_test.95eebe94d3.png                  yeoman-003.9a15c29c16.png                   yeoman-5325.6cc480e27a.map                  yeoman-5363.6cc480e27a.map
07_after_localstorage.17f395442f.png        yeoman-004.5ddf2404cb.png                   yeoman-5326.a4780b8280.map                  yeoman-5364.52ec788454.map
07_before_localstorage.068ca1a039.png       yeoman-008.cfa02809bf.png                   yeoman-5327.6cc480e27a.map                  yeoman-5365.a4780b8280.map
07_install_localstorage.8aeb43f137.png      yeoman-009.1d0fc2d466.png                   yeoman-5328.6cc480e27a.map                  yeoman-5366.6cc480e27a.map
07_show_localstorage.40c23235c9.png         yeoman-02.83c46c7213.png                    yeoman-5329.6cc480e27a.map                  yeoman-5367.52ec788454.map
08_serve_dist.17f395442f.png                yeoman-4658.f96429c9a1.map                  yeoman-5330.a4780b8280.map                  yeoman-5368.a4780b8280.map
09_list_sub-generators.e763e87fb2.png       yeoman-4672.52ec788454.map                  yeoman-5331.6cc480e27a.map                  yeoman-5369.6cc480e27a.map
angular2_ionic2.fdfb900971.png              yeoman-5292.13a20f003e.map                  yeoman-5332.a4780b8280.map                  yeoman-5370.6cc480e27a.map
april-electron.2bfc6d8b8a.png               yeoman-5293.f6828a697f.map                  yeoman-5333.6cc480e27a.map                  yeoman-5371.6cc480e27a.map
april-es62.999f514308.png                   yeoman-5296.6cc480e27a.map                  yeoman-5334.a4780b8280.map                  yeoman-5372.6cc480e27a.map
april-es6.768aa761fc.png                    yeoman-5297.6cc480e27a.map                  yeoman-5335.6cc480e27a.map                  yeoman-5373.6cc480e27a.map
april-react.8cd75e7f6d.png                  yeoman-5298.6cc480e27a.map                  yeoman-5336.a4780b8280.map                  yeoman-5374.6cc480e27a.map
backbone-app-path.683bee1aac.png            yeoman-5299.6cc480e27a.map                  yeoman-5337.6cc480e27a.map                  yeoman-5375.6cc480e27a.map
bundle-5172.0d02889ad7.map                  yeoman-5300.6cc480e27a.map                  yeoman-5338.a4780b8280.map                  yeoman-5376.6cc480e27a.map
bundle-5172.cfdc2e0838.css                  yeoman-5301.6cc480e27a.map                  yeoman-5339.6cc480e27a.map                  yeoman-5377.6cc480e27a.map
bundle-5231.4da8fdc732.map                  yeoman-5302.6cc480e27a.map                  yeoman-5340.52ec788454.map                  yeoman-5378.6cc480e27a.map
bundle-5231.e60a88aaeb.js                   yeoman-5303.6cc480e27a.map                  yeoman-5341.a4780b8280.map                  yeoman-5379.6cc480e27a.map
bundle-5290.322f203a81.map                  yeoman-5304.6cc480e27a.map                  yeoman-5342.6cc480e27a.map                  yeoman-5380.6cc480e27a.map
bundle-5290.ba2f517ae7.js                   yeoman-5305.6cc480e27a.map                  yeoman-5343.52ec788454.map                  yeoman-5381.6cc480e27a.map
error.8c00c2487d.png                        yeoman-5306.6cc480e27a.map                  yeoman-5344.a4780b8280.map                  yeoman-5382.6cc480e27a.map
favicon.b25e58c4b8.ico                      yeoman-5307.6cc480e27a.map                  yeoman-5345.6cc480e27a.map                  yeoman-5383.6cc480e27a.map
generator-gulp-angular-logo.a6d9572773.png  yeoman-5308.6cc480e27a.map                  yeoman-5346.52ec788454.map                  yeoman-5384.6cc480e27a.map
gulp-logo.ede0aceef8.png                    yeoman-5309.6cc480e27a.map                  yeoman-5347.a4780b8280.map                  yeoman-5385.6cc480e27a.map
icon-menu.abb5c08383.png                    yeoman-5310.a4780b8280.map                  yeoman-5348.6cc480e27a.map                  yeoman-5386.6cc480e27a.map
illustration-home-inverted.91b07808be.png   yeoman-5311.6cc480e27a.map                  yeoman-5349.52ec788454.map                  yeoman-character-sticker.51cef7e007.png
logo.06e9814fb3.png                         yeoman-5312.a4780b8280.map                  yeoman-5350.a4780b8280.map                  yo-backbone-mocha.c506420472.png
logo.2a54d87108.png                         yeoman-5313.6cc480e27a.map                  yeoman-5351.6cc480e27a.map                  
mustache.f55a48b53d.svg                     yeoman-5314.a4780b8280.map                  yeoman-5352.52ec788454.map                  

[Munter]

Looks like we should also name our source map files a bit better. I'm having a hard time figuring out what .map file pairs with what . file. Maybe have them named ..map?