FIX charset -> encoding in load_files

Removed the deprecation of charse_error; this isn't going to be pickled
anyway. Renamed charset_error to decode_error, which I think is more
suggestive of its meaning than encoding_error.
DOC typo
Revert "FIX charset -> encoding in load_files"

This reverts commit ed204ea96dfa5f50c1d13de88ede1900b625ab25.

This shouldn't have been on master yet, see #2128.
FIX verbose output from k-means
FIX remove params from RandomizedSearchCV

They were deprecated before the class was ever released.
FIX charset -> encoding in load_files

Removed the deprecation of charse_error; this isn't going to be pickled
anyway. Renamed charset_error to decode_error, which I think is more
suggestive of its meaning than encoding_error.