Clarify module intent in identifier name

Author: jasonkuhrt

lib/index.js

@@ -3,7 +3,7 @@ import Debug from 'debug'
 import * as resizeEvent from './on-resize'
 import * as Layout from './layout'
 import throttle from 'lodash.throttle'
-import cssvp from 'css-vendor'
+import cssVendor from 'css-vendor'
 import { isServer, window } from './platform'
 import ReactLayerMixin from './react-layer-mixin'
 import { arrayify, assign, findDOMNode, clientOnly } from './utils'
@@ -13,14 +13,14 @@ import PopoverTip from './popover-tip'
 
 const log = Debug(`react-popover`)
 
-const supportedCSSValue = clientOnly(cssvp.supportedValue)
+const supportedCSSValue = clientOnly(cssVendor.supportedValue)
 
 const jsprefix = (x) => (
-  `${cssvp.prefix.js}${x}`
+  `${cssVendor.prefix.js}${x}`
 )
 
 const cssprefix = (x) => (
-  `${cssvp.prefix.css}${x}`
+  `${cssVendor.prefix.css}${x}`
 )
 
 const cssvalue = (prop, value) => (