removing dead code

removing legacy code that isn't used anymore:
 - deleted the 'bundlers' project
 - deleted the 'cutlass-dev-servlets' project
    - the 'com.caplin.cutlass.filter.BladerunnerDevFilters' filter needs to be removed from app web.xml's
 - some minor deletion of unused classes in 'cutlass-common'

I suggest this is merged *after* the 0.7 release since there is a small amount of risk around this. The full build and dashboard was run before each commit so I don't think theres a massive risk around it, but worth holding off.