Fix returning 0 instead of empty string on out of bounds getLineOfList call
Merge pull request #222 from MathWizz/patch-1

Fix returning 0 instead of empty string on out of bounds getLineOfList call
Improve charAt
String(…) -> "" + …
Use faster letter of
Cache RGB when setting pen color
Merge branch 'cache-rgb' into audit
Set lineCap less often