updated parsimmon to v0.5.0

project url changed too
Merge pull request #2351 from Bartvds/def/parsimmon

updated parsimmon to v0.5.0
node fs.utimes methods also accept Date's
Merge pull request #2353 from Bartvds/def/node

node fs.utimes methods also accept Date's
Add test files & correct header

Add test files & correct header for date.format.d.ts
Minor update to comment - to allow a new commit
Merge pull request #2358 from Bartvds/date.format

Add test files & header for date.format