Merge maintainers.txt fixes from trunk.

[SVN r85148]

libs/maintainers.txt

@@ -25,8 +25,8 @@ concept_check         Jeremy Siek <jeremy.siek -at- gmail.com>
 config                John Maddock <john -at- johnmaddock.co.uk>
 container             Ion Gaztanaga <igaztanaga -at- gmail.com>
 context               Oliver Kowalke <oliver.kowalke -at- gmail.com>
-coroutine             Oliver Kowalke <oliver.kowalke -at- gmail.com>
 conversion            Antony Polukhin <antoshkka -at- gmail.com>
+coroutine             Oliver Kowalke <oliver.kowalke -at- gmail.com>
 crc                   Daryle Walker <darylew -at- hotmail.com>
 date_time             Jeff Garland <jeff -at- crystalclearsoftware.com>
 disjoint_sets         Jeremy Siek <jeremy.siek -at- gmail.com>
@@ -77,7 +77,7 @@ optional              Fernando Cacciola <fernando_cacciola -at- ciudad.com.ar>
 operators             Daniel Frey <d.frey -at- gmx.de>
 parameter             David Abrahams <dave -at- boost-consulting.com>, Daniel Wallin <daniel -at- boostpro.com>
 phoenix               Joel de Guzman <joel -at- boost-consulting.com>, Thomas Heller <thom.heller -at- gmail.com>
-polygon               Lucanus Simonson <lucanus.j.simonson -at- intel.com>
+polygon               Lucanus Simonson <lucanus.j.simonson -at- intel.com>, Andrii Sydorchuk <sydorchuk.andriy -at- gmail.com> 
 pool                  Stephen Cleary <scleary -at- jerviswebb.com>
 preprocessor          Paul Mensonides <pmenso57 -at- comcast.net>
 program_options       Vladimir Prus <ghost -at- cs.msu.su>