osgearth: build open-scene-graph with Qt

Fixes #1238.
edirect: update sha1
vips 7.40.11

Closes #1239.
fsa 1.15.9: New formula

FSA is a probabilistic multiple sequence alignment algorithm which uses a
distance-based approach to aligning homologous protein, RNA or DNA sequences.
blast 2.2.29: Fails to build with clang build 600

Closes #1078
pcl: add patch for boost 1.56

Enables cloud_composer and point_cloud_editor
Using WITH_QT to disable qt support

Closes #1241.