Fix/file encoding

[tbusser-itouch]

Tim, I think I fixed the problem with file names containing a special char. I've tested on Windows 7 and on OSX 10.8.4. It seems to work well on these systems but I was wondering if you have something else at your disposal to test this fix before rolling it out.

[timdouglas]

I should be able to test on ubuntu in the next few days

[timdouglas]

Looks like it fails on ubuntu 12.04

Tried to save a file called téstubuntu.less

Traceback (most recent call last):
  File "./sublime_plugin.py", line 362, in run_
  File "./less2css.py", line 45, in run
  File "./lesscompiler.py", line 83, in convertOne
  File "./lesscompiler.py", line 154, in convertLess2Css
  File ".\posixpath.py", line 70, in join
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 2: ordinal not in range(128)

[tbusser-itouch]

Okay, I will have a look at it... perhaps somewhere I need to add a check for Linux or something.