1. add a new PnetCDF hint: nc_record_align_size
2. add to sneak_peek for the parallel test and 3 env variables for testing controls
3. add an example PBS script for running parallel test programs
4. Move pnetcdf.h.in to pnetcdf.h. pnetcdf.h.in is no longer needed to generate pnetcdf.h, as PNETCDF_VERSION_MAJOR etc. should not be visible to users. Version macros are defined/handled in configure.in now.
5. sync error codes and other macros with netcdf.h of version 4.3.1.1.
6. revise configure.in to make sure Makefiles in all subdirectories are built, including Fortran directories even if --disable-fortran is used. This is to make sure "make dist" includes all source files for releases.
7. subfiling is enabled by default



git-svn-id: https://svn.mcs.anl.gov/repos/parallel-netcdf/trunk@1564 c368ceb8-fd28-0410-a457-e46ee1d7cd4a