Primarily to get #1208 sorted.

@iojs/collaborators please don't merge any semver-minor changes to v1.x until we get this out, it'll just make it more complicated.

/cc @mscdex

• [3b9eab9779] - build: make check aliases test (Johan Bergström) #1211
• [4c731042d4] - configure: use cc and c++ as defaults on os x (Ben Noordhuis) #1210
• [8de78e470d] - path: reduce type checking on some methods (cjihrig) #1216
• [c9aec2b716] - querystring: fix broken stringifyPrimitive (Jeremiah Senkpiel) #1213
• [a89f5c2156] - querystring: parse numbers correctly (Jeremiah Senkpiel) #1213
• [2034137385] - smalloc: don't mix malloc() and new char[] (Ben Noordhuis) #1205