make app builds a self-contained rebar-compliant app.
Merge pull request #294 from cuongth/boss_branch

add arguments for boss_cache_adapter_ets
Fix compilation error
Add @rambocoder's windows script-fu to the new make app process.
Merge pull request #293 from cstar/master

Change Makefile app target to copy boss and deps in a rebar compliant fashion to project dir. No more path necessary.
Elixir fixes
No more temporary files when compiling LFE
New "req" and "session_id" macros for Elixir
BossFlash and BossSession Elixir wrappers