initalization function and configuration changed

The newer versions of Bolt handle configuration and initialization differently - so this version of the extensions file reflects how most extensions do it at the moment.
Updating the Roadmap
updating roadmap
Version number -> 1.3.0
foundation 5.
Tweaking..
Manually merging #51: "initalization function and configuration changed" by @jadwigo
Update index.php
Made some clarifications for choosing the correct database. Thanks, @harm10 for the suggestion.
Written some docs for the new "imageinfo" tag.
Some more explanation about "Square" images.
Some minor tweaks and changes. Thanks again, @harm10.
Small change.
Tweaking docs for fancybox tag.
removed two stray quotes.
typo.
Update roadmap.md
Add documentation for previous and next functions
Correcting Norwegian locale example in locales.md
Merge pull request #54 from hansfn/patch-1

Correcting Norwegian locale example in locales.md