RubyGems: Remove "ruby", "gem", and "gems" triggers.

These are ambiguous triggers.
RubyGems: Remove "ruby xml" test.

"ruby" is a very ambiguous and should not refer to RubyGems.
Prevent querying isitsnowingyet.org if location is unknown or incomplete.
Commented my changes to the Snow Spice.
Xkcd: added next button that appears when there is a next comic
Xkcd: made next button float right
Xkcd: renamed, added if in template, added css
Xkcd: fix naming of share files
Merge pull request #408 from bradcater/prevent-emtpy-snow-location-query

Prevent querying isitsnowingyet.org if location is unknown or incomplete.
Xkcd: commented
Merge pull request #409 from mattr555/xkcd-next-button

Xkcd: added next button
xkcd: Rename front-end files.
xkcd: Change name of the template.
Merge pull request #416 from duckduckgo/jag/xkcd/rename

xkcd rename files
https://github.com/duckduckgo/zeroclickinfo-spice/issues/325
https://github.com/duckduckgo/zeroclickinfo-spice/issues/418
added bullets for #325 using <ul>
https://github.com/duckduckgo/zeroclickinfo-spice/issues/325 added bulltets in front of stats
module with dashes now handled properly
adding to attributions