Improve I/O

Speed up reading and writting files using lua script.

Bug fixes

bugfix: file_put_contents() with LOCK_EX option

file_put_contents() with LOCK_EX option call stream_lock with option 0

v0.9.3

Optimized reading files.
Added interface for PathTranslator.

v0.9.2

Fixed bugs
Added support for searching locking files into Nette diagnostic panel