Rename RowGroup and ColGroup tests to *legacy.
Merge branch '1.0' of github.com:donquixote/cellbrush into 1.0
Reproduce addRowGroup() and addColGroup() with simple addRowNames() and addColNames()
README.md: Replace addRowGroup() and addColGroup() with addRowNames() and addColNames().
README.md: Use row handles in coconut / banana example.
README.md: We need dedicated exception classes.