Pyexcelerate

* Python 3.4 added to list of supported Python versions

* Add PyInstaller hook
* Indicate that PyInstaller is the only supported packager

* Support for setting row/column widths
* Fix issue 22 - Decimal data type (thanks rhyek)

* Implement new "YOLO" mode for increased PyExceleration
* Fix tests/benchmark.py and update benchmark data

* Fix import errors caused by missing templates
* Remove bundled six.py and use system-wide six.py instead

* Add basic style support (see README.md for usage and examples)
* Merge and intersection logic bugfixes (thanks morty)
* Fixed float precision bug (thanks jmcnamara)