v0.3.0

* FIX when importing large CSV files
* SC-IM now supports wide chars, enabling the use of different alphabets.
  The following alphabets are supported:
  English, Spanish, French, Italian, German, Portuguese, Russian, Ukrainian, Greek, Turkish, Czech, Japanese, Chinese
* Modification in padding of cells and how they are saved in files.
* UNDO / REDO improvements. Now the following actions are supported:
  Change in format of a column as a result of the 'f' command
  Change in format of a column as a result of auto_jus
  Change format of columns as a result of ic dc