Update vendored Sqlite3-ruby to 1.3.0

Also, some tweaks to Maruku.

vendor/plugins/sqlite3-ruby/test/helper.rb

@@ -1,67 +1,3 @@
-# add lib folder to the path
-$:.unshift File.expand_path(File.join(File.dirname(__FILE__), '..', 'lib'))
-
 require 'sqlite3'
-
-require 'rubygems'
 require 'test/unit'
-
-# define mocks to be used
-require 'mocha'
-
-class Driver < Mocha::Mock
-  def initialize
-    super
-    stubs( :open ).returns([0, 'cookie'])
-    stubs( :close ).returns(0)
-    stubs( :complete? ).returns(0)
-    stubs( :errmsg ).returns('')
-    stubs( :errcode ).returns(0)
-    stubs( :trace ).returns(nil)
-    stubs( :set_authorizer ).returns(0)
-    stubs( :prepare ).returns([0, 'stmt', 'remainder'])
-    stubs( :finalize ).returns(0)
-    stubs( :changes ).returns(14)
-    stubs( :total_changes ).returns(28)
-    stubs( :interrupt ).returns(0)
-  end
-end
-
-class MockResultSet < Mocha::Mock
-  def initialize
-    super
-    stubs( :each ).yields(['foo'])
-    stubs( :columns ).returns(['name'])
-  end
-end
-
-class Statement < Mocha::Mock
-  attr_reader :handle
-  attr_reader :sql
-  attr_reader :last_result
-
-  def initialize( handle, sql )
-    super()
-    @handle = handle
-    @sql = sql
-    stubs( :close ).returns(0)
-    stubs( :remainder ).returns('')
-    stubs( :execute ).returns(MockResultSet.new)
-  end
-end
-
-# UTF conversion extensions
-class String
-  def to_utf16(terminate=false)
-    self.split(//).map { |c| c[0] }.pack("v*") +
-      (terminate ? "\0\0" : "")
-  end
-
-  def from_utf16
-    result = ""
-    length.times do |i|
-      result << self[i,1] if i % 2 == 0 && self[i] != 0
-    end
-    result
-  end
-end
+require 'iconv'