BUG: Allow any pandas installation after 1.0.0

Merge pull request #20 from zbrookle/allow_pandas_versions_above_1

ENH: Change hard pandas 1.0.1 to anything after pandas 1

ENH: Support for order of evaluation using parentheses

v0.1.4

CLN: Reformat code

Major bug fix

Fix issue where you couldn't multiply on the left of expressions

SQL Data Types and minor bug fixes

• Add support for most SQL and Pandas datatypes including: object, varchar, int16, smallint, int32, int64, int, bigint, float16, float32, float64, float, bool, datetime64, timestamp, category
• Fix issue where a column aliased and selected multiple times ended up as one column

Initial Release

v0.1.1

CLN: Code reformatting