docs: registerFormat/setFormat/setModule will be removed in 0.15

Author: ctalkington

README.md

@@ -18,10 +18,6 @@ You can also use `npm install https://github.com/archiverjs/node-archiver/archiv
 
 Creates an Archiver instance based on the format (zip, tar, etc) passed. Parameters can be passed directly to `Archiver` constructor for convenience.
 
-#### registerFormat(format, module)
-
-Registers an archive format. Format modules are essentially transform streams with a few required methods. They will be further documented once a formal spec is in place.
-
 ### Instance Methods
 
 Inherits [Transform Stream](http://nodejs.org/api/stream.html#stream_class_stream_transform) methods.

index.js

@@ -40,7 +40,7 @@ vending.registerFormat = function(format, module) {
   }
 
   formats[format] = module;
-}
+};
 
 vending.registerFormat('zip', require('./lib/plugins/zip'));
 vending.registerFormat('tar', require('./lib/plugins/tar'));

lib/core.js

@@ -476,6 +476,7 @@ Archiver.prototype.finalize = function() {
   return this;
 };
 
+// needs to be deprecated
 Archiver.prototype.setFormat = function(format) {
   if (this._format) {
     this.emit('error', new Error('format: archive format already set'));
@@ -487,6 +488,7 @@ Archiver.prototype.setFormat = function(format) {
   return this;
 };
 
+// needs to be deprecated
 Archiver.prototype.setModule = function(module) {
   if (this._state.aborted) {
     this.emit('error', new Error('module: archive was aborted'));