new scala imports breaks use of Math

[scottdraves]

SparkUI.ipynb now gives:

<console>:106: error: missing argument list for method Math in object MIMEContainer
Unapplied methods are only converted to functions when a function type is expected.
You can make this conversion explicit by writing `Math _` or `Math(_)` instead of `Math`.
       val x = Math.random()

@jpallas

[jpallas]

Conflict between java.lang.Math and MIMEContainer.Math. The name Math is problematic. But using Scala's random instead of Java's would be the quick fix.