Move parameter controls to a sub.

Should make layout changes easy.
Move log control to a sub.
Add splitter with 2 panes, move log controll to the bottom pane.
Replace Wx::STC with Wx::Scintilla.
Add abstract, clenup.
Rename page.
Add connection detail controls, other small changes.
Fix select default item in lists.
Factor out forms from pages.

Rename methods change, 'create' with 'build';
Reorder methods;
Rename the Parameters page to Info, move params to the SQL page.
Die on not enough parameters for get_details_for.
Add load_conn_details method.
Inform the user about the current database and driver in the login dialog.
Add verbose to options.
Add translation support to messages.

And as a consequence:
Factor out test for loading the required modules;
Factor out checking rows and generating the corresponding user messages;
Add translation support to messages.
Add exception for SQL::Parser, cleanup some unused code in Model.pm.
Update the docs to the new config style.
Fix catfile syntax.
Make string translatable.