Change {Chili => Open}Project::Database usages

Signed-off-by: Alex Coles <alex@alexbcoles.com>

app/models/principal.rb

@@ -51,7 +51,7 @@ class Principal < ActiveRecord::Base
     lastnamefirstname = "((lastname || ' ') || firstname)"
 
     # special concat for mysql
-    if ChiliProject::Database.mysql?
+    if OpenProject::Database.mysql?
       firstnamelastname = "CONCAT(CONCAT(firstname, ' '), lastname)"
       lastnamefirstname = "CONCAT(CONCAT(lastname, ' '), firstname)"
     end

app/models/user.rb

@@ -486,7 +486,7 @@ class User < Principal
   # version.  Exact matches will be given priority.
   def self.find_by_login(login)
     # force string comparison to be case sensitive on MySQL
-    type_cast = (ChiliProject::Database.mysql?) ? 'BINARY' : ''
+    type_cast = (OpenProject::Database.mysql?) ? 'BINARY' : ''
     # First look for an exact match
     user = first(conditions: ["#{type_cast} login = ?", login])
     # Fail over to case-insensitive if none was found

db/migrate/20120731091543_use_the_full_sti_class_names_for_repositories.rb

@@ -32,7 +32,7 @@ class UseTheFullStiClassNamesForRepositories < ActiveRecord::Migration
     concatenation = "('Repository::' || type)"
 
     # special concat for mysql
-    if ChiliProject::Database.mysql?
+    if OpenProject::Database.mysql?
       concatenation = "CONCAT('Repository::', type)"
     end