Add support for Russian locale

--- po/Makefile
+++ po/Makefile
@@ -1,5 +1,5 @@
 POTFILES=$(wildcard ../lib/*.pm) $(wildcard ../lib/GUI/*.pm) ../tinyca2
-CATALOGS=de.mo es.mo cs.mo fr.mo sv.mo
+CATALOGS=de.mo es.mo cs.mo fr.mo sv.mo ru.mo
 
 all: $(CATALOGS)
 
--- install.sh
+++ install.sh
@@ -7,9 +7,11 @@ mkdir -p locale/es/LC_MESSAGES
 mkdir -p locale/cs/LC_MESSAGES
 mkdir -p locale/fr/LC_MESSAGES
 mkdir -p locale/sv/LC_MESSAGES
+mkdir -p locale/ru/LC_MESSAGES
 
 msgfmt po/de.po -o locale/de/LC_MESSAGES/tinyca2.mo
 msgfmt po/es.po -o locale/es/LC_MESSAGES/tinyca2.mo
 msgfmt po/cs.po -o locale/cs/LC_MESSAGES/tinyca2.mo
 msgfmt po/fr.po -o locale/fr/LC_MESSAGES/tinyca2.mo
 msgfmt po/sv.po -o locale/sv/LC_MESSAGES/tinyca2.mo
+msgfmt po/ru.po -o locale/ru/LC_MESSAGES/tinyca2.mo