Compiler changes

• Workaround nrefactory issue 501 - 'logical and' operator is resolved as 'bitwise and' when user defined 'bitwise and' exists (b41c64b)
• 5.4.9 (d29f7b6)
• Merge pull request #10 from oleneveu/master
  Provide compatibility with IE11 for source maps. (9ee4920)
• Provide compatibility with IE11 for source maps. (18032be)
• Fix csharp parser error reporting (e548a46)
• update gitignore (41c6b65)

SDK changes