The majority of Rails applications are multiprocess, people
may wonder why rails new generates a default pool of 5, does
my application need a connection pool of 5? By generating
a default of 1 database.yml is much more clear, and with
the comment people know what is the connection pool for,
and they know it has to be bigger for multithread apps.
Some end with a full stop, some don't. Let's have attention to detail
and make them uniform. I have chosen to add full stops according to
our documentation guidelines related to RDoc.
I've moved the schema_format :sql config setting to application.rb because you would
never enable this only for the test environment. If you use database constraints
or database specific data types you would want all of your environments to use them.
