simpler and more tought out src/font.h
added simple routine for input sanitization
add preliminary header file for print control
Merge branch 'master' of https://github.com/juhakivekas/printer into new
Projectlog entry about bitmap parsing. Also removed a duplicated entry.
Projectlog entry on the avr TWI
Arranged code into header and source files. Added function for convenient access to bitmap data.
Arranged code into header and source files.
created font with all ascii characters in range [0x20, 0x7f], stored it as code in font.h
Documented my font creation process
Some additional notes on the font creation process
started making the calculator program