Restore missing db_charset and db_collate to nginx recipe.
Restore missing db_charset and db_collate to nginx recipe.

gusrc/wordpress-cookbook,atomic-penguin/wordpress,atomic-penguin/wordpress,petracvv/wordpress-cookbook,mconf-cookbooks/wordpress-cookbook,brint/wordpress-cookbook,mconf-cookbooks/wordpress-cookbook,gsreynolds/wordpress-cookbook,brint/wordpress-cookbook,petracvv/wordpress-cookbook,brint/wordpress-cookbook,gsreynolds/wordpress-cookbook,mconf-cookbooks/wordpress-cookbook,gusrc/wordpress-cookbook,gsreynolds/wordpress-cookbook,petracvv/wordpress-cookbook,gusrc/wordpress-cookbook