Added recipe for ilmbase 2.1.0 package (not working yet)

There is a problem with compilation on centos machine:
configure: error: POSIX thread support required

This is bizzare since necessary files exist:
/lib64/libpthread-2.12.so
/lib64/libpthread.so.0
/usr/include/pthread.h
/usr/include/bits/pthreadtypes.h
/usr/lib64/libpthread.so
/usr/lib64/libpthread_nonshared.a
/usr/lib64/pkgconfig/pthread-stubs.pc
Updated recipe for boost 1.55.0
Added recipe for openimageio 1.1.1 package (not working yet)
Upgraded recipe for openexr to 2.0.1 version (not working yet)
Added recipe for wxpython 2.8.12.1 package (not working yet)