Update readme.txt
Display line numbers for the file being edited
add preference to enable/disable line numbers

add preference to enable/disable line numbers and make font change work
Render line numbers using TextAreaPainter

Fix the line number font rendering problem on the Mac.

Now, the TextAreaLineNumbers class extends the TextAreaPainter and just
overloads the paintLine method to make it render the line number instead
of rendering the whole line. Other than that, the superclass' drawing
code is used.

So: the same drawing code that renders the source code text in the
editor is now also being used to render the line numbers.
Added Arduino Ethernet variant.

Fixes #925
Added LED_BUILTIN constant to Leonardo board
Changed LED_BUILTIN to a macro to better support boards that do not have a built-in LED.

Fixes #758
Help 3rd party installers find the hardware path
Merge branch 'cayci-master'
Fix robot problems regarding new version of Arduino
Updates to a number of Examples

removed pachube examples, added xively examples. changes to the Servo
examples
Added SERIAL metadata into variant files.
Updated listfiles SD example

Updated description of the file
Updated Blink without delay example

Changed variable to unsigned long.
Modified LCD custom character example

moved lcd.begin() to the beginnng of the setup() and fixed an issue
that prevented the example from compiling. When calling lcd.write()
with an argument of 0, the 0 must be cast a s a byte.
Updated KeyboardMessage example
Fix SERIAL_* metadata in Arduino Ethernet variant
Merge remote-tracking branch 'arduino/master'
Merge pull request #1659 from X-Y/master

Fix robot problems regarding new version of Arduino
add operator==, remoteIP and remotePort to EthernetClient