Added CF variable name attribute to cubes and coords.
Added var_name argument to cube.aux_factory() method.
Added is_compatible methods.
Added ignore keyword arg to is_compatible().
Merge pull request #317 from esc24/cfvarnamespaces

Added support for CF variable names to cubes and coords
Merge pull request #203 from bblay/nimrod_orog

nimrod orography loading
Increment version number
Merge pull request #342 from rhattersley/ratchet-version

Increment version number
Merge pull request #238 from bblay/abf

Abf loading
Merge pull request #172 from bblay/pcolmess

pcol msg fix
Corrected len(coord) to len(coord.points) and added test for relevant code path. No other cases of len(var_type_coord) found with grep -R "len("
Merge pull request #349 from iedwards/len_coord

Corrected len(coord) to len(coord.points) and added test
removal of pyprojdependency
Merge pull request #313 from cpelley/rm_pyproj_dep

Remove dependency on pyproj.
Use position independent code flag for compilation of gribapi
Merge pull request #357 from esc24/travis_grib

Use position independent code flag for compilation of gribapi
Basic support for varying longitude ranges.
Merge pull request #350 from rhattersley/wrap-linear

Basic support for varying longitude ranges.
Various small documentation fixes + style improvements.
Merge pull request #261 from pp-mo/old_doc_changes_1_oks

Changes from PR.212 -- those already ok-ed.