Fixes floydpink/lzwCompress.js#131

[4storia]

For the recently filed issue: #131

Creating dictionary without prototype to avoid prototype collisions from packed strings that contain javascript

[coveralls]

Pull Request Test Coverage Report for Build 538

• 1 of 1 (100.0%) changed or added relevant line in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 87.383%

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Totals
Change from base Build 537:	0.0%
Covered Lines:	130
Relevant Lines:	138

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💛 - Coveralls

[codecov]

Codecov Report

Merging #132 (02bba08) into master (1b64bdd) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #132   +/-   ##
=======================================
  Coverage   94.20%   94.20%           
=======================================
  Files           1        1           
  Lines         138      138           
=======================================
  Hits          130      130           
  Misses          8        8           

Impacted Files	Coverage Δ
lzwCompress.js	94.20% <100.00%> (ø)

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[floydpink]

Thank you for the PR!