various bugfixes in d3.d.ts
d3.d.ts: fixed raw signatures for conic projections
d3.d.ts: no-return -> void return types
added definitions for parsimmon
added definitions for XRegExp
fixed error in README.md for url-templates
add test file
Merge pull request #1965 from Bartvds/def/uri-templates

fixed error in readme.md for url-templates
Merge pull request #1963 from Bartvds/def/xregexp

added definitions for XRegExp
Merge pull request #1964 from Bartvds/def/parsimmon

added definitions for parsimmon
add passport library
Merge pull request #1966 from horiuchi/passport

add passport library
Merge pull request #1943 from asgerf/master

various bugfixes in d3.d.ts