Rollback extending list of Python extensions to resolve IPython deps

{devel}[intel/2015a] CMake 3.3.1 (REVIEW)

fix broken test because of change in dep_graph function

fix determining whether dependency is an external module

{lib}[intel/2015a] Global Arrays 5.3 (REVIEW)

This reverts commit 18e06c15.

This reverts commit e5218465.

This reverts commit 1e3d5ae4.

{vis}[intel/2015a] Graphviz 2.38.0 + pygraphviz 1.3rc2 w/ Python 2.7.10 (REVIEW)

fix conflict detection in unit tests

{bio}[goolf/1.4.10] MACS 1.4.2-1 (REVIEW)

use FTPGNOME_SOURCE where applicable

Update texinfo-5.2-GCC-4.8.2.eb

{phys}[intel/2015a] FDS r18915 (REVIEW)

make texinfo a build dep in bc easyconfig

{tools,vis}[intel/2015a] Ghostscript 9.16 + cairo 1.14.2 + GLib 2.44.1 (REVIEW)

add GMP as missing dep in Python 2.7.10 easyconfigs (required for pycrypto extension)