Bug fix: corrected the update of PxIV on both read and write access
Bug fix: allow IFG to be set and not only cleared
Minor optimization: removed obsolete warnings since IOSegment will ensure that write is only called with correct addresses
Minor optimization: reduce port map size to required size
fixed DEBUG to be set when loglevel is set to DEBUG.
Corrected the button configuration for the WiSMote platform
Added access methods for stack and heap start
Fixed compiler warning and corrected indentation
Bug fix: only use guessed heap start if no heap start was found in the ELF file
Merge pull request #6 from nfi/PxIV

Bug fixes in the interrupt handling