Fix a bunch of typos

Fix a bunch of typos

s/Directoy/Directory/
s/Dont/Don't/
s/accross/across/
s/an other/another/
s/completition/completion/
s/directoy/directory/
s/dont/don't/
s/occurence/occurrence/
s/overwriten/overwritten/
s/prefered/preferred/
s/prevously/previously/
s/reenabled/re-enabled/
s/to to/to/
s/whith/with/