[BUG] Sometimes the axes lose their sharpness

[rmaksim]

Expected Behavior

Current Behavior (Sometimes)

Possible Solution

This is because - we get a fractional value in the variable totalLeftBoxesWidth
also all totals - total ( Left | Right | Top | Bottom ) BoxesWidth
https://github.com/chartjs/Chart.js/blob/master/src/core/core.layoutService.js#L405

For example to use Math.ceil() to get the smallest integer greater than or equal to a given number.
and then there will always be an excellent result ;)

And maybe this will solve another issue #4637

Steps to Reproduce (for bugs)

for example on sample page press btn Randomize Data many times
http://www.chartjs.org/samples/latest/charts/line/basic.html

• Chart.js version: any version
• Browser name and version: any browser

[rmaksim]

Steps to Reproduce

with 2.7.0 http://jsbin.com/vifidij/edit?html,css,js,output