fix (previously unreachable?) no module found return value generation.

Correctness rationale:
1. "all logical operators consider false and nil as false and anything else as true" (http://www.lua.org/pil/3.3.html)
2. Lua complains "attempt to concatenate" for both boolean and nil values
∴. If the original code were reached, it would have exploded.

With this patch (and an upcoming patch) this gets us closer to an accurate error message when the module is not found, although there's still some [old?] folder-fallback logic in colony.run that gets us.
failing test for #276
change require() directory traversal logic to check topmost folder, fixes #276
retry socket on failed connect call
fixed http create server

fixed chunks
making _write callback

cleaning up

removing set interval

cleaning up
Adds check for invalid removeListener arguments.
Fixes removeAllListeners after previous error correction in removeListener.
fixing comments
Merge pull request #293 from tessel/jh-socket-recover

fixes http create server & http gets/posts
Merge pull request #279 from natevw/issue-276

Fix require() parent directory traversal
Add missing object arg, opt thisArg to Array methods. Fixes gh-283

NOTE: forEach thisArg to be implemented in follow up commit

Signed-off-by: Rick Waldron <waldron.rick@gmail.com>
travisplexer: pr-284-linux travis ci test