Merge pull request #495 from hintjens/master

Whitespace and comment cleanups
Fixed el5/el6 deps in RPM spec file
Fixed newline in test_disconnect_inproc
Merge pull request #496 from amuraru/master

Fixed el5/el6 deps in RPM spec file / newline fix
Merge pull request #497 from hintjens/master

Clarified how icp:// works with zmq_bind
deprecate zmq_ctx_destroy in favor of zmq_ctx_term

in order to avoid logical collisions with pre-existing notions of context destruction in bindings (czmq, pyzmq).
move configure.in -> configure.ac

autotools warns that configure.in
should actually be named configure.ac
AM_CONFIG_HEADER -> AC_CONFIG_HEADERS

AM_CONFIG_HEADER raises an 'obsolete error' with automake 1.13.
Merge pull request #498 from minrk/zmq_ctx_term

deprecate zmq_ctx_destroy in favor of zmq_ctx_term
Merge pull request #499 from minrk/ac_header

Minor autoconf tweaks
Shortening the =-chars to make asciidoc work
Merge pull request #500 from haf/fixes/asciidoc-title

Shortening the =-chars to make asciidoc work
do not use EPROTO on platforms that do not have it
Merge pull request #501 from chazmcgarvey/conditional-eproto

do not use EPROTO on platforms that do not have it
Add size check on XSUB message sends

Ensures 0 length messages aren't being checked for subscribtion status on whatever data happens to be following the data pointer.
define a dummy EPROTO for platforms that don't use it

This accomplishes the same thing as 2e2ef7fd in a potentially cleaner way.
Merge pull request #502 from ianbarber/master

Add bounds check on upstream XSUB messages
Added tests/test_disconnect_inproc to .gitignore
Fix cmake not linking librt to perf-tools
Merge pull request #504 from o172/master

Adds tests/test_disconnect_inproc to .gitignore