Dicelab 0.7 - Nov 25, 2009
==========================
- the documentation was improved, we now have a halfway useful manual
- an optimising framework was added and a first cases for "sum X # Y" 
expressions was added. this is really cool!
- fixed handling of msdos (\r\n) newlines
- fixed a build problem related to yylineno
- a parser problem related to unary minus was fixed ("2-1" vs "2 - 1")
- problems in expressions like "sum keep high 2 3#d6" were fixed
- a bug in foreach (all probabilities too low) was fixed
- a manual is now included
lots of fixes by jonas koelker (thanks a lot!):
- code cleanups and simplifications, memory allocation fixes, Makefile fixes
- repetition of a fixed value did not return the default (0)
- segfault in "prod ((), ())"
- a problem with the ordering in variables was fixed

Dicelab 0.6 - Feb 22, 2008
==========================
Defering whether an operator cares about the ordering of the lists it gets is
extended and also includes "let" expressions now. this should significantly
speed up many operations.

Dicelab 0.5 - Dec 10, 2007 
==========================
You can now do perl-like comments starting with a '#', which allows she-bang 
lines. A segfault in the sorting of results was fixed, and the "let" operator
works correctly with "-c" now. Some memory leaks and accesses beyond array
bounds were fixed too. A big test suite was added and many errors found this
way fixed. 

Dicelab 0.4 - Aug 14, 2007
==========================
Optimizations that take into account whether the ordering of a result list is
of interest to an operator, leads to massive speedups in some cases.

Dicelab 0.3 - Jul 07, 2007
==========================
Actually calculating the distribution of values in a precise way is supported.
As a consequence the --threshold option was added.

Dicelab 0.2 - Mar 22, 2007
==========================
This version adds a way to get the statistical distribution of results by 
simply rerolling many times. 
Error reporting was also improved, and some bugs in the grammar fixed.

Dicelab 0.1 - Feb 21, 2007
==========================
This is the first "working" release, it does roll dice and has the
infrastructure laid out, but is does not yet do statistics.