Modularized installation

- Select between interactive and full automatic installation
- New colors.sh file with color definition to better log output
- New futils.sh with convenience functions
- Renamed setup.sh to install.sh
- Bootstrap file that prepares environment and clones repository
- Moved every package to its own subdir inside $APP_DIR/pacakages
- New osx.sh to setup some good defaults within OSX. Also install Homebrew and some utils
- New gitignore file with good defaults
Moved files
Updated README
Merge branch 'feature/modular_install' into develop
Added credit to people who deserve
Created bash env files directory
Added bash install and configuration
Moved sudo password to install.bash
Make bash the default shell for user
Check if cloned and if it is, pull instead
Added version number
Merge branch 'release/0.2.0'