Log Message:
Update to 4.1.5.04

* Remove from extra slashes from OmegaT shell script

Changelog:
----------------------------------------------------------------------
 OmegaT 4.1.5 update 4 (2019-03-04)
----------------------------------------------------------------------
  6 Enhancements
  4 Bug fixes
  1 Localisation update
----------------------------------------------------------------------
4.1.5 update 4 vs 4.1.5 update 3

  Implemented requests:

  - Search selected text in the dictionary
  https://sourceforge.net/p/omegat/feature-requests/1401/

  - Separate paragraphs in Editor
  https://sourceforge.net/p/omegat/feature-requests/314/

  - Show where paragraphs begin and end
  https://sourceforge.net/p/omegat/feature-requests/431/

  Other changes:

  - Linux: Nimbus look and feel added to omegat.kaptn

  - New Polish, Czech and Slovak segmentation rules

  - When running scripts on the command line, mock bindings are added for
"editor" and "glossary", and "console" output are \ 
written on System.out.
Calls to console scripts are logged.

  Bug fixes:

  - The script auto_open_last_project was not working

  - Error 404 when using IBM Watson
  https://sourceforge.net/p/omegat/bugs/932/

  - The user agent (used for instance for machine translation) was
not defined correctly

  - OmegaT ignores Word document with different file structure
  https://sourceforge.net/p/omegat/bugs/935/

  Localisation Updates:

  - Italian localisation updated to 4.1.5 update 3 (documentation)