New mu-check, more units in climate file, PEP8 (#251)
New mu-check, more units in climate file, PEP8 (#251)

* New mu-check, more units in climate file, PEP8

* Change also the error message

anoukvlug/oggm,OGGM/oggm,juliaeis/oggm,bearecinos/oggm,bearecinos/oggm,OGGM/oggm,juliaeis/oggm,TimoRoth/oggm,anoukvlug/oggm,TimoRoth/oggm