updated readme for linux users
Merge pull request #73 from alexwforsythe/work1

updated readme for linux users
updates grunt node dependencies to try to fix travis
explicitly declares sass version for travisci
run bundle install before install
Add mac instructions to the readme.
Merge branch 'master' into addMacReadme
cleaned up linux section

removed rebase command because that isn't smart
Removed dumb git commands in the linux section

removed really dumb git commands in the linux section
Merge pull request #74 from austinpray/fixTravis

Fixes travis build failing
Merge branch 'master' into addMacReadme
Update Gemfile
Update README.md

formatting of badges
Enhances app icons

- adds favicon.ico
- adds web app capablity to iOS
- adds apple touch icons

closes #19
iOS webapp status bar set to black
update title to progrid.io
makes windows section more general

removes incorrect git commands
accidentally a word
removes stray git command
Adds General Dependences Section