see #1160
Updated Esplora examples to match the latest of the Esplora repo
Small change to EsploraLightCalibrator example

Chnaged LOW to HIGH
Minor changes to EsploraTable example
Revert "Small change to EsploraLightCalibrator example"

This reverts commit 7e5ca6244baefbdadaf16b735ff5624d979e3d21.
Minor change to EsploraRemote example
Added header comments to EsploraPong
Added comments for EsploraPong
Updated title in comments of Esplora Sound Sensor example
Added Esplora readJoystickButton function to be consistent with Esplora readButton
Permissions/IO errors can cause nullpointerexception
Fixes #1160

Merge remote-tracking branch 'arduino/master-issue1160'
Updated revisions log
Merged upcoming 1.0.4 and updated revision log
Imported Ehternet memory-leak fix into sam