Add list comprehensions to future module
Extend list comprehension documentation
Add -lm for fesetround and fegetround
Move floating point rounding and exceptions handling to math
(it's C99 as well, not just POSIX)
Preserve nil <-> NULL between Nimrod and database.
Move fenv to its own module
Merge branch 'devel' of github.com:Araq/Nimrod into devel

Merging mainline devel.
Merge branch 'devel' of github.com:Araq/Nimrod into devel

Merging mainline devel.
Merge branch 'devel' of github.com:Araq/Nimrod into devel

Merging mainline devel.
Tweaks for postgres driver (not tested yet).
Documents json module.
Hides TJsonError, it wasn't being used.
Adds stringification support for nnkPostfix nodes.
Merge branch 'devel' of github.com:Araq/Nimrod into devel
Add comment.
Add comment.
Merge pull request #1497 from milosn/devel

Preserve nil <-> NULL between Nimrod and database.
Update nsis.tmpl

Fix adding the mingw binary to the path variable
Various atomics fixes for gcc/clang.

Make atomicInc/atomicDec work with clang, too; also, actually import
the memory model constants from C rather than relying on the enum
matching the C constants by happenstance.
Nimrod -> Nim