Fixed arm toolchain unpack for macosx.
Moved arm-gcc upgrade to specific development branch
removed output from exec tar: windows does not know /dev/null
Updated revision log
Wrong boards.txt entry (sub-menu items) for Arduino Nano w/atmega328.

Fixes #1558
Added line follow parameters for older robots. "(14,9,50,10)" fits better for robots that has "TK" markings on top.
Merge pull request #1560 from X-Y/master

Added line follow parameters for older Arduino Robots.
Refactored Languages array
Removed some java warnings
Silently revert to system i18n language, if the currently selected language is not available.
[sam] fixed SPI initialization

Fixes #1561