replace erl sript in copied erts with generated version
copy start_clean boot file along with erts
update do type spec for undefined config
Merge pull request #30 from tsloughter/next

Update readme, fix test, generate erl script with proper paths, copy start_clean.boot if config opt set
change to release rootdir to run release
Merge pull request #31 from tsloughter/next

change to release rootdir to run release
add crash dump to git ignore
add extended start script
add extended_start_script to example relcool config
Merge pull request #32 from tsloughter/next

add extended start script
add contributing document
Merge pull request #33 from tsloughter/next

add contributing document
bugfix for empty configs in the Erlang API
move discovered releases to their own area of the relcool state
support shared resoure as far as discovery goes

also correctly handles symlinks without infinite loops
fix bug in rebuild rule of makefile
fix bug in release override test suite