release 1.5.0

- Add conversion from Vectors (c() and list() constructs in R) to jav…

…a.util.List

- Bump dependency versions for spotbugs and junit
- prep release

release v1.4.2

Handle transformations of empty tables (used to get an ArrayIndexOutO…

…fBoundsException) - now returning empty List instead

Fix handling of factorized columns with NA values

Change Row naming to use an IntSequence instead of the no longer existing RowNamesVector(numberOfRows)
Bump dependency versions

update docs with latest release info

release v1.2

fix typo

release 1.0