recreating a non-existant database shouldn't raise any exception (and we make sure of it)

Signed-off-by: Marcos Tapajós <tapajos@gmail.com>

lib/couchrest/core/database.rb

@@ -265,7 +265,7 @@ module CouchRest
     def recreate!
       delete!
       create!
-    rescue HttpAbstraction::ResourceNotFound
+    rescue RestClient::ResourceNotFound
     ensure
       create!
     end

spec/couchrest/core/database_spec.rb

@@ -716,7 +716,7 @@ describe CouchRest::Database do
     
     it "should recreate a db even tho it doesn't exist" do
       @cr.databases.should_not include(@db2.name)
-      begin @db2.recreate! rescue nil end
+      @db2.recreate!
       @cr.databases.should include(@db2.name)
     end