Remove hard-coded ICANN fallback and re-include names.json in npm package

[pinheadmz]

commit ecc4987:
dns: remove unused hard-coded ICANN fallback
This was added in f45bd0f and not required or used by any other module. I don't think it has ever been used. The root zone included in this file is out of date and I looking at the next commit I think @chjj thought it was too big a file to include in the package anyway. Closes this comment of this issue: #603 (comment)

commit cbad4d6:
pkg: include consensus-critical json files in npm package
This reverts 9a1dda0 which reverted e3a6e71 which reverted 9b61bf7. I wish I knew what the issue was with these files but names.json at least is consensus critical in the browser environment (like Bob's front end) and since MTX and Address require covenants which requires reserved, we can't just discard it.

[coveralls]

Pull Request Test Coverage Report for Build 1355972148

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 1 unchanged line in 1 file lost coverage.
• Overall coverage decreased (-0.007%) to 62.25%

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Files with Coverage Reduction	New Missed Lines	%
lib/covenants/rules.js	1	69.11%

Totals
Change from base Build 1343021118:	-0.007%
Covered Lines:	21190
Relevant Lines:	31820

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💛 - Coveralls