Adding WrapperProps and WrapperStyle attributes

Rebase of 6f0b53d by @zoeabryant

Author: Nicholas Kinsey

lib/Autocomplete.js

@@ -12,11 +12,17 @@ let Autocomplete = React.createClass({
     shouldItemRender: React.PropTypes.func,
     renderItem: React.PropTypes.func.isRequired,
     menuStyle: React.PropTypes.object,
+    wrapperProps: React.PropTypes.object,
+    wrapperStyle: React.PropTypes.object,
     inputProps: React.PropTypes.object
   },
 
   getDefaultProps () {
     return {
+      wrapperProps: {},
+      wrapperStyle: {
+        display: 'inline-block'
+      },
       inputProps: {},
       onChange () {},
       onSelect (value, item) {},
@@ -298,7 +304,7 @@ let Autocomplete = React.createClass({
       })
     }
     return (
-      <div style={{display: 'inline-block'}}>
+      <div {...this.props.wrapperProps} style={{...this.props.wrapperStyle}}>
         <input
           {...this.props.inputProps}
           role="combobox"