Replacing 1.9.3-p426 with 1.9.3-p429

1.9.3-p426 was deprecated by 1.9.3-p429 since it won't build on RHEL6
systems (and others?)
Merge pull request #359 from artificialrobot/master

Replaced 1.9.3-p426 with 1.9.3-p429 definition (p426 was yanked after release due to build issues)