Revert "enable tar_config_opts easyconfig parameter for all builds that trigger configure to figure out ustar tarring command (which may make the build hang if pax is run)"

This reverts commit 4edc6b71.

Conflicts:

	easybuild/easyconfigs/o/OpenMPI/OpenMPI-1.4.5-GCC-4.6.3-no-OFED.eb

remove unnecessary use of patch file

remove unnecessary use of patch file, should be fixed by https://github.com/hpcugent/easybuild-easyblocks/pull/31 and https://github.com/hpcugent/easybuild-easyconfigs/pull/26

enable use of tar_config_opts where needed, bump version

enable tar_config_opts easyconfig parameter for all builds that trigger configure to figure out ustar tarring command (which may make the build hang if pax is run)

Fix setup deps

Develop

bump version to 1.0.0-rc2

fix zlib version conflicts in dependencies

fix bugs causing failed tests in regtest

add release notes for v1.0-rc1 (to be v1.0)

fix zlib dependency version to avoid version conflicts

use correct zlib version as dependency for Python 2.7.3

remove Perl as dependency, as it is not supported yet

fix typo

add easyconfig for OpenMPI with hwloc, knem, checkpoint and Torque/PBS support

add easyconfig for MVAPICH2 with hwloc and checkpointing support

Python fixes + mercurial support

fix contributed easyconfigs

fix typos in easyconfigs (sanityCheckPaths -> sanity_check_paths and source_URLs -> source_urls), add custom sanity checks for libpng and freetype