python: support virtualenv
add tsuru statsd plugin
Merge pull request #48 from jblancett/statsd

add tsuru statsd plugin
enabling statsd for all platforms.
buildpack/deploy: fixing the platform
java/install: also install java8

One step closer to support multiple versions of Java, using an
environment variable + update-alternatives.
java: supporting both Java 7 and Java 8

Users can now specify a Java version via the JAVA_VERSION environment
variable.
java/start: fix permission
java/install: fixing some directory warnings
java/start-tomcat: create temporary directory to fix a warning
added script to install lua
updated dockerfile to make install of luarocks
inserted deploy file to lua
created app in lua like a example
inserted lua application
updated lua app
updated dockerfile to install nginx and openresty
created procfile
updated app.lua
updated dockerfile