TODO
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05/08/2015

Main features to achieve in near future versions
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1. Finish scripting

2. Colorcell shouldnt be applied if lock cells are found

3. When saving .sc files, save the user defined ranges

4. UNDO/REDO changes in colwidth, precision and realfmt.
   UNDO/REDO changes of filters applied.

5. Change XLS import routine to work like the XLSX one.

6. lock / freeze (glue down) a section of the screen



Main features to achieve before v1.0
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1. CALC CHAIN

2. With calc chain already implemented, fix problem when UNDOing actions that change cells equations !!!



Long term features
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1. multiple worksheets!!

2. isolate UI code (CURSES) from the rest of the code for future
implementations in other gui's.

3. scim_scripting. Use LUA to allow scripting and plugin support.

4. Use UTF-8 encoding and display any Unicode char.
Change curses calls to cursesw calls.

5. status bar format customized by user.
can show count of cells and sum of values, when a range is selected..
*this should be done with a script.