Remove metadata on the Homepage (#1121)

* Remove the metadata button on home page

1) Hopefully make it more clear that the Homepage is meant as a sandbox to test out the site, not a real brew that will be saved.

2) Also, avoid errors resulting from trying to modify the metadata of a brew that doesn't really exist yet.

* Lint

client/homebrew/pages/homePage/homePage.jsx

@@ -77,7 +77,7 @@ const HomePage = createClass({
 
 			<div className='content'>
 				<SplitPane onDragFinish={this.handleSplitMove} ref='pane'>
-					<Editor value={this.state.text} onChange={this.handleTextChange} ref='editor'/>
+					<Editor value={this.state.text} onChange={this.handleTextChange} showMetaButton={false} ref='editor'/>
 					<BrewRenderer text={this.state.text} />
 				</SplitPane>
 			</div>