Changelog for arithmoi-0.2.0.6

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0.2.0.6: Performance tweaks for powerModInteger (~10%) and invertMod (~25%). 0.2.0.5: Fix bug in psieveFrom 0.2.0.4: Fix bug in nthPrime 0.2.0.3: Fix bug in powerMod 0.2.0.2: Relax bounds on array dependency for 7.4.* 0.2.0.1: Fix copy-pasto (only relevant for 7.3.*) Fix imports for ghc >= 7.3 0.2.0.0: Added certificates and certified testing/factorisation 0.1.0.2: Fixed doc bugs 0.1.0.1: Elaborate on overflow, work more on native Ints in Eratosthenes 0.1.0.0: First release