Don't require sqlite and postgres gem

[artfuldodger]

Update README to inform user they'll have to include the relevant one in their own gemset

[mhenrixon]

Get the following error:

/Users/mhenrixon/.rvm/gems/ruby-2.2.3/gems/activerecord-3.2.22/lib/active_record/connection_adapters/sqlite_adapter.rb:472:in `table_structure': Could not find table 'profiling' (ActiveRecord::StatementInvalid)

This is my configuration

require 'rspec_profiling/rspec'

RspecProfiling.configure do |config|
  config.vcs        = RspecProfiling::VCS::Git
  config.collector  = RspecProfiling::Collectors::PSQL
  config.db_name    = 'profiling'
  config.table_name = 'profiling'
end

Can't see any obvious reason for why it isn't working. It is like I can't turn off the SQLite database.

[pho3nixf1re]

I am getting the same error with the CSV turned on.

[gtmax]

@artfuldodger +1

[Jinara]

Me too....