v0.2.2

Julia v0.7 compatibility - lastindex/range (#135)

The function `endof` is now `lastindex` and `linspace` was substituted by
`range` using keyword arguments. Another change is from `reprmime` to `repr`.

In some cases simply using Compat was enough. In some of the tests,
the version number was explicitly called: I Compat wasn't enough.