Add hideIgnoredFiles option to projects

spec/app/project-spec.coffee

@@ -193,3 +193,13 @@ describe "Project", ->
           path: project.resolve('a')
           match: 'aa'
           range: [[1, 3], [1, 5]]
+
+    describe "hiding ignored files", ->
+      it "defaults @hideIgnoredFiles to false", ->
+        expect(project.getHideIgnoredFiles()).toBe(false)
+
+      it "implements a setter for the @hideIgnoredFiles option", ->
+        project.setHideIgnoredFiles(true)
+        expect(project.getHideIgnoredFiles()).toBe(true)
+        project.setHideIgnoredFiles(false)
+        expect(project.getHideIgnoredFiles()).toBe(false)

src/app/project.coffee

@@ -15,6 +15,7 @@ class Project
   autoIndent: true
   softTabs: true
   softWrap: false
+  hideIgnoredFiles: false
   rootDirectory: null
   editSessions: null
   ignoredPathRegexes: null
@@ -116,6 +117,9 @@ class Project
   getSoftWrap: -> @softWrap
   setSoftWrap: (@softWrap) ->
 
+  getHideIgnoredFiles: -> @hideIgnoredFiles
+  setHideIgnoredFiles: (@hideIgnoredFiles) ->
+
   buildEditSessionForPath: (filePath, editSessionOptions={}) ->
     @buildEditSession(@bufferForPath(filePath), editSessionOptions)