Updated Divisor.m2
remove old makefile targets
start enabling the use of parallel make

When building Macaculay2 may now build it with a command such as "make
-j4", with no ill effect.  The resulting parallelism has been disabled
in all but one of our recursive make processes, the building of the
FLINT library.  With the current scheme, we can start implementing
parallelism bit by bit.
Merge branch 'master' of github.com:Macaulay2/M2
Merge remote-tracking branch 'upstream/pull/167'
mention "make -jN" in INSTALL file
update changelog after version number changes
update mpfr to version 3.1.2

This necessitates disabling thread safe storage, because then mpfr
stores gmp numbers in thread-local variables, which are managed by
libgc.

Close issue 21
fix package Benchmark

it was getting the processor name in an error-prone way
Merge branch 'master' of github.com:Macaulay2/M2
random real numbers have changed

The MPFR library changed the way it generates random real numbers in version
3.1, and we've been using their routine, mpfr_urandomb.  The new code is
supposed to give the same answer for every architecture.

This commit fixes one of our test files.
fix failing test in package NumericalAlgebraicGeometry

... because mpfr's random real number generator has changed.
Merge branch 'master' of github.com:Macaulay2/M2
fix a test

... because MPFR changed the way it generates random real numbers
rename a makefile target
turn on parallelism in packages directory
add wget to INSTALL
fix library makefile
undo previous commit

There was a bug - curl can be used, instead.
fix packages Makefile for parallelism