Update .gitignore

Same .gitignore as in integration. Now ignores .doxyfile
Updated gitignore
Merge branch 'release1'
Added twi header and source files. Added register mapping in the header file.
Merge branch 'pmc_extension' into integration
fixed a bug in pmc_read_pin()
fixed bug in pio_set_port()
First draft of header file!

Created headerfile tc.h with initial struct of register mappings and doxygen comments.
Added draft of most basic functions!

Added definitions of basic functions like start/stop and
enable/disable clocks for each channel. Also for reading
counter values.
Finished first API draft of TWI
...Finalized the header file?

Added more structure to the header file for tc.h. Added more
doxygen comments and worked on the structs. Needs reviewing
from the architect!
Added more defines and settings!

Started with setting structs for the heavy loaded registers.
Added more defines used with these. Not complete yet, still more
to implement.
Further header file work and new tc.c!

Worked futher by adding content to the header file and
also created tc.c with a single function "enable_channel()"
as a template for further work.
Merge remote-tracking branch 'origin/rtos_prince' into integration
Merge branch 'integration' of https://github.com/theolind/mahm3lib into integration
EEFC done!
PMC's in a better shape!
Final structure/content update for tc.h!

All the different settings parameters are added and documented
properly. Functions to use both is defined.
However: The header file is starting to get very large and
some of the defines/parameters may come to be removed later on
if they're not used/tested.
Merge branch 'integration' into mcu_timers
PMC fixed!