my-env: Preserve http_proxy and ftp_proxy variables

There are few build scripts which set them to `nodtd.invalid` to disable
downloading files by buildscript. But for user environment we should
restore original values
add game 'tcl2048'
tcl2048: update to 0.2.6
tcl2048: wrong sha256sum.
grub: fix grub merge error
gource: update to version 0.42
haskell-xml-html-conduit-lens 0.3.2.0 -> 0.3.2.1
Bump snort and daq
pypyPackages.pycryptopp: mark as not supported on pypy
pythonPackages.cffi: 0.7.2 -> 0.8.6
PyPy ships with cffi, so don't use external cffi for packages
audacious: update to version 3.5.1
rdesktop: update to version 1.8.2

rdesktop: add meta fields
ruby: add version 2.1.2
deluge: update to version 1.3.7
pypyPackages: use pypy internal greenlet module
Revert "h5py: New package, version 2.3.1"

This reverts commit 3c6afb34967a241e2c2e106cb02bad55b5389b94.

Doesn't build.
Revert "mpi4py: New package, version 1.3.1"

This reverts commit 63c062947eb765e4a02bc892e1891da7057fdfec.

Doesn't build.
lv2: update from 1.8.0 to 1.10.0
sratom: update from 0.4.4 to 0.4.6