added support for '-' in filenames
Corrected repeated 'less' in checkName's message
Decapitalised secondary headings and linked the *Credits* section
…sketches After merging #1859, old sketches that uses Robot_Control library must include Wire.h and SPI.h to work properly.
This reverts commit 7fcba37.
If 2 libs have same .h file, use the lib with same dir name