Remove nospace option from bash completion
Add proper bash completion
Add comment to default settings
Expand PROGRAM in config paths
Remove support for printing QR code to stdout

This can instead be achieved by simply using the -w option with cat as
parameter.
Manage output through trace and err functions
Print dot size in verbose mode
Rename PIXELSIZE to DOTSIZE
Add multiline support with -m, --multiline option

User can now encode the full output from pass, not just the first line,
by passing the -m, --multiline option.
Expand default TIMEOUT in usage message
Add -s, --dotsize option
Only evaluate config lines matching a preset pattern
Set VERBOSE in the first pass over arguments
Version 1.1.0

Changelog:
- Add config file support
  - Command line options have precedence
- Add more command line options
  - -c, --config FILE
  - -h, --help
  - -m, --multiline
  - -s, --dotsize
  - -w, --viewer 'COMMAND'
- Add proper bash completion
- Add some output to verbose mode
- Attempt to find viewer automatically if none is set
- Exit immediately if no pass-name is given
- Greatly improve usage message
- Clean up makefile, add uninstall target

Signed-off-by: Emil Lundberg <lundberg.emil@gmail.com>