Migrate oai module settings to database
Revise readmes module configuration form
Revise scheduler module configuration form
Migrate statistics module settings to database
Revise thumbnailcreator module configuration form and add install script
Revise tracker module configuration form and add install script
Migrate visualize module settings to database
Tidy remaining configuration files
Revise pvw module configuration form and add install script
Revise random number, string, and UUID generation to improve security