Summary: Fix surrogate area docs; make source more readable
Reviewed-by: okutsu, sherman
Contributed-by: NUlf Zibis <ulf.zibis@gmx.de>

Summary: Make wording of javadoc clearer and more consistent
Reviewed-by: sherman

Summary: Rewrite lastIndexOf for performance and correctness
Reviewed-by: sherman
Contributed-by: NReviewed by Ulf Zibis <ulf.zibis@gmx.de>

Summary: Move isBmpCodePoint from sun.nio.cs.Surrogate to Character
Reviewed-by: sherman
Contributed-by: NUlf Zibis <ulf.zibis@gmx.de>

Summary: Use the cleverest possible bit-twiddling micro-optimizations
Reviewed-by: sherman
Contributed-by: NUlf Zibis <ulf.zibis@gmx.de>

Reviewed-by: michaelm, chegar

6856415: Enabling java security manager will make programe thrown wrong exception ( main method not found )
Reviewed-by: darcy

Reviewed-by: michaelm, alanb

Reviewed-by: michaelm, weijun

Reviewed-by: chegar

Summary: The fix for 6933622 regressed control builds, this is a workaround fix, filed 6964313 to find the right answer to why it happened and how to fix it correctly.
Reviewed-by: alanb, darcy