#1 category and photos names
#6 Adding images as last
#6 Adding images as last
#1 refactor galleryItemName out of the setter.
#1 modified the name when adding images or categories.
Added banner to configuration (default to the only banner).
#2 I really don't want to complicate the context passing the
configuration to constructor of any object created.
What if the configuration changes? I'll have to go everywhere where I
passed the variables and change them... that is impossible.
#2 Added popup to open the banner.
#2 Removed explicit call to inlcudePopup
#2 Displayed icon to edit the banner only on the pages of the top menu.
#2 Added banner form in order to choose one of the available banners.
#2 Fixed login form.
#2 Extracted image size as static variable
#2 changed Context
#2 added comment on resize photos specifying the width.
#2 Abstract resizeImage method
#2 moved required_once on top of the class
#2 Added possibility to hide the banner (set None banner).
#12 added configuration defaults
#12 Added proper error when couldn't write the configuration file.