added strip() to remove newline characters from being put in the path when echo is used to expand '~'
Merge pull request #109 from cprinos/master

Remove newline from user expansion in path
changed doc and example reference from plumbum.utils to plumbum.path.utils
Merge pull request #110 from cprinos/master

changed doc/example references from plumbum.utils to plumbum.path.utils