implyr 0.2.0

• Updated for compatibility with dplyr 0.7.0 (#5)
• Added automated tests (#6)
• Documented how to use in_schema() to specify the database containing the table (#2, #3)
• Made minor bugfixes and improvements

implyr 0.2.1

• Updated for compatibility with dbplyr 1.1.0
• Added and changed some SQL translations
• Enabled auto-disconnect by default
• Made minor bugfixes and improvements