#86: wrong max height when using maxRows and boxSizing "border-box" (closes #86)

[FrancescoCioria]

Closes #86

Test Plan

tests performed

it works:

can be manually overridden with inline style (in case you wanted the buggy version for some reason :D )

tests not performed (domain coverage)

At times not everything can be tested, and writing what hasn't been tested is just as important as writing what has been tested.

An example of partial test is a field displaying 4 possible values. If 3 values are tested, with screenshots, and 1 is not, then it should be mentioned here.}