Added error description for 408 HTTP response
Added Spark.publish()+Spark.function() issue to Known Issues
Added documentation for flashing/solid magenta LED per issue #73
Added note to connection u.FL antenna if needed per issue #74
Minor typo 'coed' + Line 483 incomplete
Merge pull request #133 from kennethlimcp/patch-5

Minor typo 'coed' + Line 483 incomplete
Merge pull request #132 from wgbartley/master

Additions and small updates to resolve outstanding issues
Merge branch 'master' into gh-pages