Add zeromq component.

component/zeromq/buildout.cfg

+[buildout]
+extends =
+  ../libtool/buildout.cfg
+  ../libuuid/buildout.cfg
+
+[zeromq]
+<= zeromq3
+
+[zeromq3]
+recipe = slapos.recipe.cmmi
+url = http://download.zeromq.org/zeromq-3.2.3.tar.gz
+md5sum = 1abf8246363249baf5931a065ee38203
+configure-options = --without-documentation
+environment =
+  PATH=${libtool:location}/bin:%(PATH)s
+  LDFLAGS=-L${libtool:location}/lib -Wl,-rpath -Wl,${libtool:location}/lib -L${libuuid:location}/lib -Wl,-rpath -Wl,${libuuid:location}/lib
+
+[zeromq2]
+recipe = slapos.recipe.cmmi
+url = http://download.zeromq.org/zeromq-2.2.0.tar.gz
+md5sum = 1b11aae09b19d18276d0717b2ea288f6
+configure-options =
+  --without-documentation
+environment =
+  PATH=${libtool:location}/bin:%(PATH)s
+  CXXFLAGS=-I${libuuid:location}/include
+  LDFLAGS=-L${libtool:location}/lib -Wl,-rpath -Wl,${libtool:location}/lib -L${libuuid:location}/lib -Wl,-rpath -Wl,${libuuid:location}/lib