Update the Binomials package

- Fix a bug where binomialMinimalPrimes would return too many
  primes (Thanks to Tobias Windisch for finding it).
- Rename removeRedundant to extractInclusionMinimalIdeals because that
  is more descriptive.
- Improve extractInclusionMinimalIdeals
- Remove an unused (and somewhat duplicate) function removeEmbedded.
- Miscellaneous small improvements.
undo 4ti2 patch changes

Here we undo changes to our 4ti2 patch that were made to VectorArrayAPI.h and
VectorArrayAPI.hpp in order to get 4ti2 to compile under Ubuntu 12.04 (habanero).
The routines in question are anomalous, because they give errors at run time
that are detectible at compile time.
improve M2-comint-prompt-regexp

... so using F11 allows statements like

    i5 = foo

to be conveyed to M2 in their entirety, instead of dropping
the text "i5 = ", which is sort of like an input prompt
Merge pull request #2 from Macaulay2/master

Update to latest master