Created file to store preload data
Merge branch 'production' into optimization
Created preload data insertion script
Added client-side subscriptions
Added preloading session variable
Added server-side subscriptions
Added preloading
Added support for preloading
Added loading indicator function
Added loading indicator in file table
replaced unicode open quote
Edited "selected" attribute syntax
Changed default webGL mode to 3D(finally)
Updated URL generation for LF images
Updated LF URL generation
Removed relPath dependency from frameURL function
Changed floor() to Math.floor()
Updated math for frame calculation
Removed redundant fields from subscription
Removed webPath dependency