COMP: testing travis-ci build

.travis.yml

+language: cpp
+
+compiler:
+- clang
+
+before_script:
+- mkdir build
+- cd build
+- sudo apt-get update -qq
+- sudo apt-get install boost-devel libgdal-dev (>= 1.10.0) libgeotiff-dev libboost-graph-dev libqt4-dev libqtcore4 libqtgui4 libopencv-dev libossim-dev libinsighttoolkit4-dev libtinyxml-dev
+
+script: cmake -DCMAKE_INSTALL_PREFIX=../install .. && make
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