Improved documentation and minor fixes

removed examples compiled with outdated MySensors protocol and instead
included documentation how to add self-compiled sketches
use codebender to compile sketches

I had codebender username/password included originally but compiling
works without. Codebender usage guidelines allow "usage via API".
Added technical details for controller developers regarding OTA bootloader
Bugfixes and rewrite parts of code
Need to include MySensor.h for gateway examples to work in codebender.
Classify method.
Fix compiler error.
Include more debug text in MINIMAL definition, and enable MINIMAL as default, saves 432bytes
Merge remote-tracking branch 'upstream/development' into development
Added .gitignore to filter stino settings files

Stino is a plugin for SublimeText to allow SublimeText to act as
an Arduino IDE.
Support for WIZnet W5100 ethernet module SPI_EN

The W5100 module has a SPI_EN signal that enables or disables the SPI
bus.
A bug in the module causes MISO to be continously driven by the module
when SPI_EN is pulled high. This is described in this application note:
https://www.google.se/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0CCAQFjAA&url=http%3A%2F%2Fwww.wiznet.co.kr%2FUpLoad_Files%2FReferenceFiles%2FW5100_AN_SPI.pdf&ei=ij84VK7uM6nNygPqvICYDw&usg=AFQjCNGz1qttBEwG1azc1Eza4j69v1rpDQ&sig2=UUUtb4Dr0F35g8ByHMsyig&bvm=bv.77161500,d.bGQ

This commit changes the Ethernet gateway sketch to drive SPI_EN high or
low, depending on which module is in use (SPI bus is shared between
Ethernet and RF modules).
The pin attached to SPI_EN is defined by W5100_SPI_EN. This define can
be commented out if SPI_EN is not needed (different module) or if the
module manages SPI_EN in hardware (some W5100 shields does this).
Merge remote-tracking branch 'upstream/development' into development

Conflicts:
	libraries/MySensors/examples/EthernetGateway/EthernetGateway.ino
Merge remote-tracking branch 'upstream/development' into development

Conflicts:
	libraries/MySensors/examples/EthernetGateway/EthernetGateway.ino
Corrected merge mistake
Merge pull request #37 from fallberg/development

Fix for W5100 Ethernet module