Fixed the weird String appending in Method 'displayHeaderInfo' to be
more compact and human readable
- Added loading and display of several Image Types through QT Classes
- Fixed minor issues in scalePicture Method
- Headerinfo for GIF Pictures currently broken
- Added Drag&Drop Functionality
- Headerinfo still broken (for GIFs)
fixed weird problem with loading, please consider all the changes
- fixing double-free-bug
- interlaced-flag in Image
- disposualMethod in Gif
- userInputFlag in image
- fixing disposualMethod-settings
Merge branch 'GUI'

Conflicts:
	src/gui/mainWindow.cpp
Merge branch 'IO'

Conflicts:
	src/gui/mainWindow.cpp
	src/lzw/gif.cpp
	src/lzw/image.cpp
	src/lzw/io.cpp
After merge cleanup