Make configuration keywords more intuitive

[fxnn]

Currently, a configuration file looks as follows:

logfiles:

- filename: /var/log/auth.log
  tags: ['auth.log']
  timelayout: Stamp
  config: {pattern: '%{SYSLOGBASE} %{GREEDYDATA:Message}'}

summary:

- summarizer: count
  title: auth.log
  where: {tags: {contains: 'auth.log'}}
  config: {
    'sudo [%{user}->%{effective_user}] %{command}': '\s*%{USER:user}\s*: TTY=%{DATA:tty} ; PWD=%{PATH:pwd} ; USER=%{USER:effective_user} ; COMMAND=%{PATH:command}(: %{GREEDYDATA:arguments})?'
  }

Parts of it are made to be easy to read, like where: {tags: {contains: 'auth.log'}}. Everyone should know what's ment, and I also feel that it's quite intuitive and thus easy to write and remember.

This should be done with all keywords in the file (as far as possible). Ideas:

• do: count (instead of summarizer)
• with: {pattern: 'abc'} (instead of config)

[fxnn]

After making the whole configuration clean and nice, we have to introduce some documentation in the README.md so that everyone visiting the project get's an idea of how to configure gowatch, and how mighty it is :)