Merge branch 'release/v0.0.1' into develop
start work on the next version
remove unused imports
fix bugs

 - Use BIGINT for _pig_status columns.
 - Catch 'ProgrammingError' thrown by MySQLdb if the table does not exist.
 - Do not remove whitespaces in SQL, fixing error with -- comments.
bump version to v0.0.2
Merge branch 'release/v0.0.2'