Fix db schema

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

db/schema.rb

@@ -13,9 +13,6 @@
 
 ActiveRecord::Schema.define(version: 20131217102743) do
 
-  # These are extensions that must be enabled in order to support this database
-  enable_extension "plpgsql"
-
   create_table "broadcast_messages", force: true do |t|
     t.text     "message",    null: false
     t.datetime "starts_at"
@@ -105,8 +102,8 @@ ActiveRecord::Schema.define(version: 20131217102743) do
     t.string   "title"
     t.datetime "created_at",                           null: false
     t.datetime "updated_at",                           null: false
-    t.text     "st_commits"
-    t.text     "st_diffs"
+    t.text     "st_commits",        limit: 2147483647
+    t.text     "st_diffs",          limit: 2147483647
     t.integer  "milestone_id"
     t.string   "state"
     t.string   "merge_status"
@@ -229,7 +226,7 @@ ActiveRecord::Schema.define(version: 20131217102743) do
 
   create_table "snippets", force: true do |t|
     t.string   "title"
-    t.text     "content"
+    t.text     "content",    limit: 2147483647
     t.integer  "author_id",                                    null: false
     t.integer  "project_id"
     t.datetime "created_at",                                   null: false