Changelog: 
----------

0.3 - 0.4
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-added command and filename completion

0.2 - 0.3
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-added -s and -k options

initial - 0.2 
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- Alt+q kills quickrun without doing anything 
- just pressing "enter" without typing in any command 
  also exits the program gracefully (in the original, 
  it tried executing "&") 
- commands entered with a terminating "&" are now executed correctly.  
- support for command history added ([-c num] to configure)

