first code
some refactoring and config-loading-code
introduced memory tracking and cleaned up some code

Makefile:
  - compiling with debug foo now optional, off by default for release
  - moved developers rules to the end so they can easily be removed for release

main.cpp:
  - changed type of settings from 'Settings' to 'Settings*'
  - added quit function to wrap up and exit
  - moved image loading functionality from 'update' to own function 'loadImage'

Settings.cpp:
  - removed 'reading conf' and 'done.' outputs
  - 'no config found'-output now only shown in debug mode

new files:
  - class Memwatch - tracks memory allocating and deallocating
  - macros.hpp - container for shared macros and defines
Merge branch 'master' of github.com:SchwarzChristian/diashow