Merge pull request #506 from jbrodman/master

Typo Fix
Changes for 1.4.1 release
Merge pull request #507 from dbabokin/master

Bumping up to 1.4.1 version
Bumping version to 1.4.1dev
Merge pull request #508 from dbabokin/master

Bumping version to 1.4.1dev