title: webpack is producing lots of numbered files
body: <p>Given a project, webpack appears to be spitting out a bunch of numbered files.  </p>
  
  <p>Heres the webpack output:</p>
  
  <pre><code>Hash: a3eb428f28df3970678b
  Version: webpack 2.4.1
  Time: 5152ms
      Asset       Size         Chunks                    Chunk Names
      28.js    1.31 kB             28  [emitted]         
       0.js     318 kB              0  [emitted]  [big]  
       2.js    4.64 kB              2  [emitted]         
       3.js    2.61 kB              3  [emitted]         
       4.js    1.55 kB              4  [emitted]         
       5.js    4.09 kB              5  [emitted]         
       6.js    5.31 kB              6  [emitted]         
       7.js     316 kB              7  [emitted]  [big]  
       8.js    17.7 kB              8  [emitted]         
       9.js    1.41 kB              9  [emitted]         
      10.js     309 kB             10  [emitted]  [big]  
      11.js     267 kB             11  [emitted]  [big]  
      12.js     278 kB             12  [emitted]  [big]  
      13.js     392 kB             13  [emitted]  [big]  
      14.js     274 kB             14  [emitted]  [big]  
      15.js      14 kB             15  [emitted]         
      16.js     301 kB             16  [emitted]  [big]  
      17.js     348 kB             17  [emitted]  [big]  
      18.js     806 kB             18  [emitted]  [big]  
      19.js    3.45 kB             19  [emitted]         
      20.js     268 kB             20  [emitted]  [big]  
      21.js    34.2 kB             21  [emitted]         
      22.js    3.29 kB             22  [emitted]         
      23.js     1.8 kB             23  [emitted]         
      24.js    20.5 kB             24  [emitted]         
      25.js     317 kB             25  [emitted]  [big]  
      26.js     826 kB         26, 18  [emitted]  [big]  
      27.js     323 kB             27  [emitted]  [big]  
       1.js     306 kB              1  [emitted]  [big]  
      29.js     391 kB             29  [emitted]  [big]  
      30.js     354 kB             30  [emitted]  [big]  
      31.js     301 kB             31  [emitted]  [big]  
      32.js    1.37 kB             32  [emitted]         
      33.js    4.81 kB             33  [emitted]         
      34.js     322 kB          34, 0  [emitted]  [big]  
      35.js     283 kB         35, 11  [emitted]  [big]  
      36.js     335 kB             36  [emitted]  [big]  
      37.js     267 kB             37  [emitted]  [big]  
      38.js    11.8 kB             38  [emitted]         
      39.js    2.51 kB             39  [emitted]         
      40.js    3.07 kB             40  [emitted]         
      41.js    2.56 kB             41  [emitted]         
      42.js     1.7 kB             42  [emitted]         
      43.js    2.16 kB             43  [emitted]         
      44.js     870 kB  44, 8, 18, 21  [emitted]  [big]  
      45.js     318 kB             45  [emitted]  [big]  
      46.js     312 kB             46  [emitted]  [big]  
      47.js    3.99 kB             47  [emitted]         
      48.js    11.1 kB             48  [emitted]         
      49.js  980 bytes             49  [emitted]         
      50.js     1.5 kB             50  [emitted]         
      51.js    3.37 kB             51  [emitted]         
      52.js    1.99 kB             52  [emitted]         
      53.js     1.2 kB             53  [emitted]         
      54.js    1.51 kB             54  [emitted]         
  bnymim.js    96.7 kB             55  [emitted]         bnymim
     [4] ./modules/siteNav.coffee 3.77 kB {5} [built]
     [5] ./modules/toggleSearch.coffee 1.24 kB {4} [built]
     [6] ./modules/predictiveSearch.coffee 4.99 kB {6} [built]
     [7] ./modules/external-link.coffee 1.92 kB {7} [built]
     [8] ./modules/tabs.coffee 9.07 kB {8} {44} [built]
     [9] ./modules/clickable-promo.coffee 1.1 kB {9} [built]
    [10] ./modules/consent-modal.coffee 3.08 kB {10} [built]
    [11] ./modules/equal-heights.coffee 2.33 kB {11} {35} [built]
    [12] ./modules/data-points.coffee 5.27 kB {12} [built]
    [13] ./modules/date-picker.coffee 5.51 kB {13} [built]
    [14] ./modules/article-share.coffee 2.25 kB {15} [built]
    [34] ./bnymim-requires.coffee 24.5 kB {55} [built]
    [35] ./bnymim.coffee 886 bytes {55} [built]
    [43] ./modules/splashscreen.coffee 4.59 kB {34} [built]
    [46] multi bnymim.coffee bnymim-requires.coffee 40 bytes {55} [built]
      + 71 hidden modules
  
  WARNING in ../vendor/moment.js
  Module not found: Error: Can't resolve './locale' in 'C:\Projects\BNYMellon\bnyim-develop\FED\vendor'
   @ ../vendor/moment.js 6:2798-2820
   @ ./modules/date-picker.coffee
   @ ./bnymim-requires.coffee
   @ multi bnymim.coffee bnymim-requires.coffee
  </code></pre>
  
  <p>I'm not sure why its doing this.  I think ideally I get a single "bnymim-bundle.js"  Note theres two entry files specified in webpack.config.js </p>