Start on new pidigits version that uses BigInt class.
Properly initialize a couple vars to 1 instead of 0.
Adjust default n value.
Merge branch 'master' of github.com:chapel-lang/chapel into use-bigint-for-pidigits
Add perf configuration file for pidigits-BigInt.chpl
Add pidigits-BigInt to graph file.
Merge pull request #539 from thomasvandoren/use-bigint-for-pidigits

Use BigInt for pidigits

Create a new version of pidigits that uses the `BigInt` class provided by GMP module.