Added ability to read EXIF data from photos

To Do:
Prroccess the photos and store them into the database.
Will probably have to change return value from readPhoto.php to be an
array.
Added a little documentation
Database Changes, Process Images

Creeated processImages:
Create thumbs, rip EXIF data, and insert into database.
Database changes:
Changed aperture to a varchar
Added dateTaken
Added originalFileName
Added on delete cascade on photosalbums
Merge remote-tracking branch 'origin/leon'

Conflicts:
	php/createThumbs.php