Usage of eval() is forbidden by FirefoxOS CSP

In privileged and certified FirefoxOS apps, the Content Security Policy forbids the usage of potentially hazardous functions such as eval(). This is a quick fix for the only occurrence of eval() in QuoJS.
Merge pull request #65 from waalt/patch-1

Usage of eval() is forbidden by FirefoxOS CSP
Merge pull request #67 from waalt/master

Prevent firing "hold" event while swiping
Merge pull request #1 from soyjavi/master

Usage of eval() is forbidden by FirefoxOS CSP