file from Elizabeth

git-svn-id: svn://svn.macaulay2.com/Macaulay2/trunk@15938 a8012f80-5f13-0410-8dc0-eb77bd940c0d
removed local vars redefinition warnings

git-svn-id: svn://svn.macaulay2.com/Macaulay2/trunk@15939 a8012f80-5f13-0410-8dc0-eb77bd940c0d
NAG updates

git-svn-id: svn://svn.macaulay2.com/Macaulay2/trunk@15940 a8012f80-5f13-0410-8dc0-eb77bd940c0d
remove the tests for the truncate(ZZ,ZZ,Matrix) method removed yesterday
replace bzero by memset in mem.hpp, because bzero is not ansi standard and
gcc 4.5.3 complains under cygwin
Merge branch 'master' of github.com:Macaulay2/M2
update my gdbinit file to defeat a security measure
undo previous change:
  "increase stack size for each secondary thread from 0.5 MB to 8 MB"

I don't remember why it was needed, but it crashes under cygwin.  If
it turns out to be needed, we can debug it more carefully or make it
depend on which system we're on.
fix previous change, so the stack size is set on non-cygwin
systems

      "increase stack size for each secondary thread from 0.5 MB to 8 MB"
add new package CompleteIntersectionResolutions, by David Eisenbud
add CompleteIntersectionResolutions to the list of distributed packages
Merge branch 'master' of github.com:Macaulay2/M2
minor changes to package CompleteIntersectionResolutions

      put exported symbols in strings to avoid collisions better
      convert strings that are really comments to comments
update to latest version 7.2d of lib gc, the garbage collector
fix the tests in GraphicalModels, which didn't manage to take into account the
randomness of hashcodes of symbols
my makefile
Merge branch 'master' of github.com:Macaulay2/M2
update to latest version 0.5 of gfan
Merge branch 'master' of github.com:Macaulay2/M2
add a comment to a test