Fixed plurals tests for ICU broken for lib icu4c version 52.1. 

Wrong plural classes were used for Russian (2..4 should be other, while 5..9 should be many) — see CLDR 24 release notes:
http://cldr.unicode.org/index/downloads/cldr-24#TOC-Plural-rule-changes

Also changed some hardcoded numbers in ICU templates to sharp symbols.