Corrected a bug in the computation of hsig in CMA-ES update function.
A division by zero occured at the first iteration because of a missing
+1 when computing the exponent of a factor in the formula. The following
result where also incorrect, but without warning, since the exponent was
still wrong.

Also corrected in the same formula an integer division error on the
right side of the comparison.
Merge.

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branch : 0.7-dev
rename : eap/cma.py => deap/cma.py
rename : doc/knapsack.rst => doc/examples/knapsack.rst
rename : doc/short_onemax.rst => doc/examples/short_onemax.rst
rename : doc/mp.rst => doc/tutorials/distribution.rst
Added a missing parenthesis add the end of the hsig expression.
Added a __init__ file to deap/dtm/tests folder.

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Merge.

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rename : eap/cma.py => deap/cma.py
Removed an 'math.' artificat from the merge with 0.6.

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Merge

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Moving DTM examples to /examples, and removing old test files.

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Merge

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Fixed the issue with metaclass pickling in the base.Fitness class, still need review.

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Modified the pickling test to follow the major changes in organisation of the modules and tools. Modified the mpga_onmax example for the same reason.

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Merge

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Merge

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Reorganized DTM classes (remove Dtm prefix to all classes except DtmThread);
Stripped french comments;
Fix mpga_onemax example
Updated DTM doc to reflect the previous changes

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Rename dtm.taskmanager to manager and update doc.

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Added the missing manager.py file

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Changed name of varMuLambda to varLambda and some documentation.

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Removed the noe useless import af abc module.

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Changed the import style of the erf function.

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Changed the test to expected failure for the lambda function and to test for partial only if python version > 2.7.

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