Merge pull request #8 from abayer/master

Add license
Reformatted README
Adding more scripting
Correcting plugin URL
Fixed wording
Added DL of config file
adding the -L switch to curl
Switch BETA links to GA
Remove "Express" wording.
add root .gitignore
Ensure configure_hostnames is called for all roles, fixes #10
create cm repo install, Issue #12
udpate licence header, Issue #12
merge #10 with #12, Issue #12
cmagent role impl, cmserver install via rpm, cmclient refer to install_cdh, Issue #12
cmagent configure role impl, refactor handlers, Issue #12
import cm licence if available on the classpath, Issue #12
clean up temp license file, Issue #12
resolve bug in wait for cm server
first pass at automating CM import config