Hey Vladimir,
You can use the following properties to set this configuration
##
## Languages and Time Zones
##
#
# Specify the available locales. Messages corresponding to a specific
# language are specified in properties files with file names matching that
# of content/Language_*.properties. These values can also be overridden in
# properties files with file names matching that of
# content/Language-ext_*.properties. Use a comma to separate
# each entry.
#
# If there is more than one locale for the same language, the first one in
# the list will be used when a translation is requested in another locale of
# the same language but a translated value cannot be found. For example, if
# there are two locales such us pt_BR and pt_PT (in this order), any key not
# found in pt_PT will be looked for in pt_BR.
#
# All locales must use UTF-8 encoding.
#
# See the following links specifiy language and country codes:
# http://ftp.ics.uci.edu/pub/ietf/http/related/iso639.txt
# http://userpage.chemie.fu-berlin.de/diverse/doc/ISO_3166.html
#
locales=ar_SA,eu_ES,bg_BG,ca_AD,ca_ES,zh_CN,zh_TW,hr_HR,cs_CZ,nl_NL,nl_BE,en_US,en_GB,et_EE,fi_FI,fr_FR,gl_ES,de_DE,el_GR,iw_IL,hi_IN,hu_HU,in_ID,it_IT,ja_JP,ko_KR,nb_NO,fa_IR,pl_PL,pt_BR,pt_PT,ro_RO,ru_RU,sr_RS,sr_RS_latin,sl_SI,sk_SK,es_ES,sv_SE,tr_TR,uk_UA,vi_VN
