Russian NLS updates

Hello,

Few updates:

psql and libpq: one new/fuzzy message each; recently introduced
pgscripts: new chunk of translated messages
all: message tweaking and rudimentary spell check

$ msgfmt -o /dev/null -v -c pgscripts.po
93 translated messages, 19 untranslated messages.

$ msgfmt -o /dev/null -v -c pgscripts.po
93 translated messages, 19 untranslated messages.

$ msgfmt -o /dev/null -v -c libpq-ru.po
100 translated messages.

$ msgfmt -o /dev/null -v -c pg_controldata-ru.po
39 translated messages.

$ msgfmt -o /dev/null -v -c pg_resetxlog-ru.po
57 translated messages.

$ msgfmt -o /dev/null -v -c psql-ru.po
273 translated messages.

Please install.

Thanks,

--
Serguei A. Mokhov