Drop the extra sudo calls
Install all required packages at once
Also install pkg-config and libpcre3-dev so Go does not complain
Make apt-get silent
Write directly to /etc/profile.d/gopath.sh instead of /tmp
Drop the execute permissions
Unify GOPATH capitalization, delete empty line
Update comment, build Go if cd succeeds
Drop the SRCROOT variable
Consistent ordering of arguments for apt-get commands
Merge pull request #291 from ivuk/vagrantfile-changes

Vagrantfile changes