Database export dsl

The dsl now is:

load_fact_data do

#commands

end

this is needed because we want to be able to test the DSL and get linenumbers as well.

the db:init:xxx now merges channels with the same name by the same user, and refuses to work if a user is declared without emailadress and password.

We have two truncating commands:

• db:truncate (truncates everything)
• db:truncate_keep_users (truncates everything except for the users)

Syntax for the file:

user "name", "emailaddress", "password", "twitterusername"