Fixed attiny compile of SPI after API change (uint8* => void*).
Check if static_assert needs to be disabled.
Refactoring file system open and seek options.
Cleanup S25FL127S device driver and example sketch.
Adding Cosa Flash File System (CFFS).
Default loop() is now exit(0);
Fixed CosaTimeLCD example sketch; ripple of RTC refactoring; diff removed.
Adding support for clear of interrupt flag.
Check for max TWI bus frequency; update TWI::set_freq().
Adding a simple 2.4 GHz channel detect tool.
Make NRF24L01P internal protected for RF24scanner tool.
Add and adjust digital and analog pin maps.
Cleaning up board definition for Mega 1280/2560 and Diecimila.
Updating description.
Adding a tiny shell for CFFS; cat, cd, echo, ls, od, time.
Allow select of prefix on hex/octal dump of memory buffer.
m_io->end wasn't called.

- In draw_bitmap, m_io->end was never called.
Merge pull request #218 from HeMan/master

Small bug in draw_bitmap.
Fixing large IOBuffer handling; missed index calculation as uint16_t.
Fixed draw_bitmap(); miss-placed end() of command block.