rename Casks which collide on "flux" by vendor

The product from justgetflux.com becomes flux.rb.  The
current flux.rb is renamed the-escapers-flux.rb.  This
resolves having two Cask names which differ only by the
placement of hyphens.

Casks/f-lux.rb

@@ -1,12 +0,0 @@
-class FLux < Cask
-  url 'https://justgetflux.com/mac/Flux.zip'
-  homepage 'http://justgetflux.com'
-  version 'latest'
-  no_checksum
-  link 'Flux.app'
-
-  after_install do
-    # Don't ask to move the app bundle to /Applications
-    system '/usr/bin/defaults', 'write', 'org.herf.Flux', 'moveToApplicationsFolderAlertSuppress', '-bool', 'true'
-  end
-end

Casks/flux.rb

@@ -1,7 +1,12 @@
 class Flux < Cask
-  url 'http://instruktion.net/theescapers/downloads/FluxV4.zip'
-  homepage 'http://www.theescapers.com/flux/'
-  version '4'
+  url 'https://justgetflux.com/mac/Flux.zip'
+  homepage 'http://justgetflux.com'
+  version 'latest'
   no_checksum
   link 'Flux.app'
+
+  after_install do
+    # Don't ask to move the app bundle to /Applications
+    system '/usr/bin/defaults', 'write', 'org.herf.Flux', 'moveToApplicationsFolderAlertSuppress', '-bool', 'true'
+  end
 end

Casks/the-escapers-flux.rb

@@ -0,0 +1,7 @@
+class TheEscapersFlux < Cask
+  url 'http://instruktion.net/theescapers/downloads/FluxV4.zip'
+  homepage 'http://www.theescapers.com/flux/'
+  version '4'
+  no_checksum
+  link 'Flux.app'
+end