Show HTML5 v2.0.0 Preview Player in KMC Preview & Embed

This pull request adds support for displaying v2.0.0 player within the preview & embed.
This pull request is depended on #261 so make sure to update ```admin.ini``` and add the following lines: 
```ini
moduls.html5PreviewPlayerV2.enabled = true
moduls.html5PreviewPlayerV2.permissionType = 2
moduls.html5PreviewPlayerV2.label = "Enable HTML5 preview player v2.0.0"
moduls.html5PreviewPlayerV2.permissionName = FEATURE_HTML5_V2_PLAYER_PREVIEW
moduls.html5PreviewPlayerV2.basePermissionType = 
moduls.html5PreviewPlayerV2.basePermissionName = 
moduls.html5PreviewPlayerV2.group = GROUP_ENABLE_DISABLE_FEATURES
```

Also you will need to create a new uiConf on partner 0 with the following properties:
```
name: "HTML5 v2.0.0 Preview Player"
partnerId: 0
objType: 8 (KDP3),
width: 640,
height: 360
config: [SEE THE LINK BELOW]
tags: html5_v2_preview
html5Url: "/html5/html5lib/v2.0.0.rc5/mwEmbedLoader.php"
creationMode: 3 
display_in_search: 2 ( not exposed from API )
```
For the actual config file, use this [Gist](https://gist.github.com/ranyefet/6582960)

### QA Instructions 
1. Choose random partner and check "Enable HTML5 preview player v2.0.0" feature
1. Open partner's KMC
2. Open Preview & Embed
3. In "Select Player" you should see: "HTML5 v2.0.0 Preview Player"