General
- Lots of bug fixes and improvements
- Tests are not built by default anymore, use `-DBUILD_TESTING=True`
to build them
- Building with C++11 is now default, use `-DCXX11=False` if you do
not have a recent compiler (533)
- Added JSON support (506)
TaQL
- Major improvements in TaQL, such as masked arrays, new commands
`ALTER TABLE`, `SHOW TABLE`, `HELP` (388)
Images
- ImageConcat and ImageExpr now use JSON export (517)