Deleted unused ModularCpp backend before more bitrot sets in.
Merge pull request #280 from ucb-bar/deleteModularCPP

Deleted unused ModularCpp backend before more bitrot sets in.
Cosmetic/scalastyle fixes - no functional changes.

Update copyright date.
Add missing copyright header.
Remove trailing whitespace.
Convert tabs to spaces.
Correct spelling in comments.
Disable scalastyle "return", "null", & "clone" checkers.
Merge pull request #281 from ucb-bar/scalastylefixws

Cosmetic/scalastyle fixes - no functional changes.
Cosmetic/scalasyle fixes - no functional changes.

Eliminate all trailing spaces at end of line.
Merge pull request #282 from ucb-bar/scalastylefixws

Cosmetic/scalasyle fixes - no functional changes.
Merge branch 'master' into Vtests

Conflicts:
	src/main/scala/Verilog.scala