notes on JRuby/Servlet compatibility
avoid yet another rspec warning
extension point to retrieving the "real-context" + notes on more API support in 1.2
start ajusting `Gem.path` directly instead of mangling with ENV['GEM_PATH']
improve app layout dir resolution - e.g. FS public path should resolve app root relative
using out "servlet-specific" path methods in booter
- we're avoiding File.exist? and expanding path specifically for the application layout
this helps for a better boot in non-expanded .war scenarios with current JRuby (1.7.11)