Pom parent project created
Add support for Java 1.7
Add basic dependencies
G²A models project created
Test case for value metadata models
Boolean value metadata model implemented
Add more constraints to value types diferent from boolean
Long, Double and String value metadata implemented
Add test for invalid constraints
Check for invalid constraint implemented
Missing Log4J unit test configuration added
Test for a boolean data
Boolean data implemented
Add test data type
Tests for double, long and string data
Data models creation implemented