press - pr: Small typos and changed release date.

Log Message:
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Small typos and changed release date.

Modified Files:
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pr/releases/8.0/ru:
press_page (r1.6 -> r1.7)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/press/pr/releases/8.0/ru/press_page.diff?r1=1.6&r2=1.7)
release (r1.5 -> r1.6)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/press/pr/releases/8.0/ru/release.diff?r1=1.5&r2=1.6)