ERT-748 Perform check for symbol before including LaTeX - to support building without LaTeX support.
ERT-748 Remove import of EclQueue in ecl package - to support usage of ecl without job_queue built
ERT-748 Remove import of EclQueue in ecl package - to support usage of ecl without job_queue built
ERT-748 Adaptive building of python packages - to avoid adding packages without the corresponding C libraries.
ERT-748 Changed test to load EclQueue directly from ecl_queue module
Merge pull request #601 from flikka/without-latex

ERT-748 Avoid imports in python - to support use of ecl package without full build.