php 7 - and code stablity

[richp10]

Please note..

I have not been using this in a live project so the library has not received much attention. I will begin using it over summer 2017 so more improvements and methods can be expected.

It is likely to become dependent on php 7 - so fork now if this breaks your app!

[ajimix]

I would suggest that add version taggings and specify in the readme something like:

• If you use php < 7 use version 1.x
• For php > 7 use version 2.x

I've been using the library for a while with php 7 and works like a charm :)