Ignore vim swap files and Easy-RSA

new file:   .gitignore
Fix ignore spec for EasyRSA

modified:   .gitignore
Added scripts to support server setup

modified:   .gitignore, README.md
new file:   pkg_server_files.sh, setup_server.sh
Fix typos and clean up

modified:   README.md
Added configuration checks

modified:   pkg_server_files.sh
Added Ubuntu client setup

Also deleted Android client section and added info on stopping/starting
the EC2 Instance to save money.

The end-to-end setup of a server and client is now complete.

modified:   README.md