Added R5 classes
Update coldbir-class and renamed several functions
Removed old tests
Update documentation
Update README.md
Update README.md
Update README.md
Update README.md
Update README.md
Update db version 1 -> 2
database version rollback 2 -> 1 (not necessary yet)
Merge pull request #3 from SthlmR/R5-classes

R5 classes