Manual merge of pull request https://github.com/Unidata/netcdf-c/pull/64 contributed by nschloe.  Assorted CMake improvements.
Fixed a simple syntax error to address https://github.com/Unidata/netcdf-c/issues/61
Backadded the fix of Jira-228
Changed default Nightly start time in CTestConfig file.
Fixed installation location for libnetcdf.settings file.
A bit of whitespace cleanup, clarification of messages in CMake-based builds.
Added infrastructure to have cmake-based builds automatically generate PDF documentation when using Doxygen.
Added check for pdflatex when building PDF documentation.  Documented new configuration option for CMake in RELEASE_NOTES.md
Changed several cmake-based messages to use WARNING instead of STATUS.  Changed DOXYGEN_LATEX_OUTPUT to DOXYGEN_PDF_OUTPUT to reflect that the latex is processed into pdf as part of the build process.  Flagged the ENABLE_DOXYGEN_PDF_OUTPUT option as Experimental.
Corrected a typo when setting a CMake variable.
reduce # processors for run_pnetcdf_test.sh
reduce # processors for run_pnetcdf_test.sh
Fixed an issue when using netcdf to compile with pnetcdf support.
Removed compiler flags to suppress unused variables warning.
Removed dangling option for enabling unused variable, parameter warnings.
make0
synch with git/oc
conflicts
Added a 'coverity' badge which will show the status on the github project page.
Merge branch 'master' of https://github.com/Unidata/netcdf-c