color themes are now more configurable, and export function was added.

Anyway, better error handling should be done.

TODO

@@ -12,7 +12,6 @@ this list.
 High
 ----
   o  Add import capabilities to read ical files inside calcurse
-  o  Add export capabilities to create xml files 
   o  Create external calendars which would contain hollydays and such (in ics
      format)
   o  Add a week view in the calendar panel
@@ -21,13 +20,13 @@ High
 
 Average
 -------
+  o  Improve error handling
   o  Improve the '-d' option by adding more date formats
   o  Accept dates entered in other formats such as d/m/yyyy or d/m/yy,
      make the date format user configurable
   o  Make keys user configurable
   o  Add searching capabilities with support for regex
   o  Allow the creation of sub-todos (divide todos into different tasks)
-  o  Make the color themes more configurable
   o  Improve handling of window resizing with the help of signals
   o  Add lunar phases calculation