Fix function name

Author: miyukki

lib/atem.coffee

@@ -431,7 +431,7 @@ class ATEM
   changeDownstreamKeyTie: (number, state) ->
     @_sendCommand('CDsT', [number, state, 0xff, 0xff])
 
-  downstreamKeyAuto: (number) ->
+  autoDownstreamKey: (number) ->
     @_sendCommand('DDsA', [number, 0x00, 0x00, 0x00])
 
   changeAudioMasterGain: (gain) ->

package.json

@@ -19,7 +19,8 @@
   "main": "./lib/atem.js",
   "scripts": {
     "test": "mocha test",
-    "postinstall": "coffee -bc ./lib/atem.coffee"
+    "build": "coffee -bc ./lib/atem.coffee",
+    "postinstall": "build"
   },
   "dependencies": {
     "async": "^1.3.0",

test/test-atem.coffee

@@ -259,7 +259,7 @@ describe 'Atem', ->
 
     after initialize
 
-  describe 'downstreamKeyAuto', ->
+  describe 'autoDownstreamKey', ->
     initialize = (done) ->
       async.eachOfSeries(sw.state.video.downstreamKeyOn, (state, index, next) ->
         sw.changeDownstreamKeyOn(index, false)
@@ -275,7 +275,7 @@ describe 'Atem', ->
           expect(state.video.downstreamKeyOn[index]).be.true
           next err, null
         )
-        sw.downstreamKeyAuto(index)
+        sw.autoDownstreamKey(index)
       , done)
 
     after initialize