Feature/update to play 2.5.0

[fpirola]

Update to latest play version (2.5.0):

• set java sdk 8
• Update version:
  • activator from 1.3.3 to 1.3.7
  • play from 2.3.5 to 2.5.0
  • play sbt-plugin from 2.3.5 to 2.5.0
  • sbt from 0.13.5 to 0.13.8
• create .profile, .bashrc and .bash_profile
• review control script for better manage gear commands
• add gear status command (see issue status function is missing in bin/control #17)
• enable to change application directory or use zip distribution file by updating .profile configuration
• update README.md

[tyrcho]

thanks a lot !