style
Unnecessary encoding argument in new hg log removed.
IDEA-116049 Mercurial log problem with Mac default locale (x_MacRoman)

*workaround for  Mac encoding aliases added;
*if unknown encoding errors appeared - use utf8 and repeat command;
*todo: need to notify about unsupported encoding once;
fix invalid file assertion
generics: bounds check should stop expanding nested wildcards up to 2nd level
jsr166e.jar included into standalone jps distribution