Added netCDF Python, fixed C++ URL.

add some jna personal scripts

Removed a couple of clang-reported potential dereferences of null/undefined pointers.

Updating cmake shared_linker_flags as suggested by Nico Schlomer: https://github.com/Unidata/netcdf-c/issues/46

Fixed indentation.

Updated .gitignore.

Added a macro to make it easy to check to see if the linker supports a particular flag.  Debug builds now pass the -w1,--no-undefined if it is detected the linker supports it.

Added initial vagrant configuration files.

Reconfigured vagrant configuration files.

Removed Extraneous Line

Updated Vagrantfile.

Upped the memory for development VM's.

Added 64-bit CentOS 6.5 configuration. Still need to write a bootstrap script for it.
Merge branch 'vagrant-dev' of https://github.com/Unidata/netcdf-c into vagrant-dev