SugarRecordResults type, other improvements and minor bug fixing

• Logging improved
• Added a continuous integration script bash ci.sh
• Added a Realm example to the example project
• Added CocoaPods experimental support
• Improved the count method to avoid unnecessary fetching. By @twobitlabs
• Renamed entityName to modelName to avoid conflicts
• Finder methods refactored to use StringLiteral instead of String
• Added RestKit example to the example project
• Added SugarRecordResults type as a Query result type (Inspired on Realm)