Merge from development

Added optional limit to chart function

Add extra parameters to cancel function

Fix for constructor arguments

PRICE_FILTER fix: roundTicks now rounds price with tickSize

add roundStep function to help with stepSize

FIX: Indirect modification of overloaded property by dmzoneill

Many improvements by dmzoneill

Many improvements and bug fixes.
16 commits by dmzoneill 🏆

Merge pull request binance-exchange#47 from jaggedsoft/master

Merge from development

Fix miniTicker + 7 commits by dmzoneill