[#2252] ArrayIndexOutOfBoundsException, when rendering plain SQL that is
terminated by a comment - Added test case
Prevent an IndexOutOfBoundsException if the SQL-String ends with a
single line comment without a newline.

Conflicts:
	jOOQ/src/main/java/org/jooq/impl/Utils.java
i could still have been out of bounds if there is only a single newline character(Linux) and not two(Windows).
[#2252] ArrayIndexOutOfBoundsException, when rendering plain SQL that is
terminated by a comment - Removed duplicate code
Renamed internal Util to Utils, for simpler merging from jOOQ 3.0