Updated htaccess

I'm not sure exactly what this will do or if it'll help, but from my
testing it only checks the file cache expires headers when the appcache
manifest has been changed.
Modified lists view layout
Several minor fixes

The fixes include better homepage due and sync count update. I've also
added a fine to try and force the add item sync to wait for an existing
to sync to complete before continuing. The modal has had extra lines
added to its reset.