Closes #143 (removes backtick quoted verbatim strings and quoted verbatim string delimiter escaping).
Closes #144 (removes parameterized import statements)
Spelling error
Closes #145 (removed parameterized instance type constraints). Also fixed a little parsing issue with instance return type constraints.
Closes #147 (removed ranged cases)
Closes #148 (removes !is, !in, and !null in favor of the keyword-based spellings).
Closes #149 (removed .super and replaced it with the superOf() stdlib function).
Closes #146 (dropped colon in numeric for loop header in favor of semicolon).
Closes #150 (removed vararg slice expressions). Doing vararg[x .. y] is now a syntax error and it will tell you to enclose vararg in parens if you really want to slice the first variadic param.
Closes #152 (removed haskell-style dollar-sign function call syntax)