Enable Serbian (Cyrillic)

Consul uses two variants of Serbian: Serbian (Cirylic), and
Serbian (Latin) so wee need to use different locale codes for each of
them to avoid collisions.

The folder names of both languages were correct but the locale code within
the files was the same for both languages "sr" so translations were mixed.

This commit changes the locale code within Serbian (Latin) translations
files to "sr-CS", also adds a new language mapping to the Crowdin config
file so next ConsulBot commits with Serbian (Latin) translations will be
done using the locale code defined at new language mapping.

config/application.rb

@@ -49,6 +49,7 @@ module Consul
       "sl",
       "sq",
       "so",
+      "sr",
       "sv",
       "tr",
       "val",

config/locales/sr-CS/activemodel.yml

@@ -1 +1 @@
-sr:
+sr-CS:

config/locales/sr-CS/activerecord.yml

@@ -1 +1 @@
-sr:
+sr-CS:

config/locales/sr-CS/admin.yml

@@ -1 +1 @@
-sr:
+sr-CS:

config/locales/sr-CS/budgets.yml

@@ -1 +1 @@
-sr:
+sr-CS:

config/locales/sr-CS/community.yml

@@ -1 +1 @@
-sr:
+sr-CS:

config/locales/sr-CS/devise.yml

@@ -1 +1 @@
-sr:
+sr-CS:

config/locales/sr-CS/devise_views.yml

@@ -1 +1 @@
-sr:
+sr-CS:

config/locales/sr-CS/documents.yml

@@ -1 +1 @@
-sr:
+sr-CS:

config/locales/sr-CS/general.yml

@@ -1 +1 @@
-sr:
+sr-CS:

config/locales/sr-CS/i18n.yml

@@ -1 +1 @@
-sr:
+sr-CS:

config/locales/sr-CS/images.yml

@@ -1 +1 @@
-sr:
+sr-CS:

config/locales/sr-CS/kaminari.yml

@@ -1 +1 @@
-sr:
+sr-CS:

config/locales/sr-CS/legislation.yml

@@ -1 +1 @@
-sr:
+sr-CS:

config/locales/sr-CS/mailers.yml

@@ -1 +1 @@
-sr:
+sr-CS:

config/locales/sr-CS/management.yml

@@ -1 +1 @@
-sr:
+sr-CS:

config/locales/sr-CS/milestones.yml

@@ -1 +1 @@
-sr:
+sr-CS:

config/locales/sr-CS/moderation.yml

@@ -1 +1 @@
-sr:
+sr-CS:

config/locales/sr-CS/officing.yml

@@ -1 +1 @@
-sr:
+sr-CS:

config/locales/sr-CS/pages.yml

@@ -1 +1 @@
-sr:
+sr-CS:

config/locales/sr-CS/rails.yml

@@ -1,4 +1,4 @@
-sr:
+sr-CS:
   date:
     abbr_day_names:
       - Ned

config/locales/sr-CS/responders.yml

@@ -1 +1 @@
-sr:
+sr-CS:

config/locales/sr-CS/seeds.yml

@@ -1 +1 @@
-sr:
+sr-CS:

config/locales/sr-CS/settings.yml

@@ -1 +1 @@
-sr:
+sr-CS:

config/locales/sr-CS/social_share_button.yml

@@ -1 +1 @@
-sr:
+sr-CS:

config/locales/sr-CS/stats.yml

@@ -1 +1 @@
-sr:
+sr-CS:

config/locales/sr-CS/valuation.yml

@@ -1 +1 @@
-sr:
+sr-CS:

config/locales/sr-CS/verification.yml

@@ -1 +1 @@
-sr:
+sr-CS:

crowdin.yml

@@ -17,4 +17,5 @@ files:
         nl: nl
         pt-PT: pt
         ru: ru
+        sr-CS: sr-CS
         val-ES: val