Rename strided_dim to fixed_sym_dim (symbolic fixed dim)

Also follow through fixes throughout
Restore the arrmeta size to fixed_sym_dim_type, some view enhancements

It might be useful to allow the symbolic fixed dim to be used
in some concrete cases across interface boundaries. The
neighborhood code is currently doing this, but maybe it could
change to concrete fixed dims as well.
Merge pull request #138 from mwiebe/rename_strided

Rename strided_dim to fixed_sym_dim (symbolic fixed dim)
Adjust the binstar script to test windows
Increase the io timeout of binstar build
Fix for 32-bit platforms
Add include for failure on os x build
Depend on cmake only on unix (conda doesn't supply it on windows)
Add include to help a particular os x build
Refactoring of strided_vals
Move the conda recipe into a subfolder
Refactored buffer and thread_buffer, and more refactoring of strided_vals
Merge pull request #139 from izaid/fix

Refactor of buffer.hpp and strided_vals.hpp