Merge pull request #7 from adjust/development

Development
Add iOs frameworks
Update readme with execution permissions
Google Play Store Readme instructions
New version v3.4.1
Merge pull request #14 from adjust/ios_framework

Add iOs frameworks
added google playservices as dependency
added function for configuration of plugin in cordova app via javascript
removed hook due to possible in app configuration
+ build script
+ resolved libraries for installing from git repository
+ plugin.xml adapted
- config.json - not needed anymore due to in app configuration
update README