images: Reduced about-banner.png file size
Merge pull request #147 from Turbo87/shrink-pngs

images: Reduced about-banner.png file size
model.flight: Converted olc_plus_score column to float
Merge pull request #148 from Turbo87/float-score

model.flight: Converted olc_plus_score column to float
bundles: Replaced Bootstrap v2.2/2.3 by v3.0
css: Converted base page templates to Bootstrap v3.0
css: Converted about page to Bootstrap v3.0
css: Converted search page to Bootstrap v3.0
css: Converted statistics pages to Bootstrap v3.0
css: Converted form templates to Bootstrap v3.0
css: Converted ranking pages to Bootstrap v3.0
css: Converted club pages to Bootstrap v3.0
users-table: Removed useless "Edit" button
css: Converted user list pages to Bootstrap v3.0
css: Converted registration form to Bootstrap v3.0
css: Converted change club page to Bootstrap v3.0
css: Converted user details page to Bootstrap v3.0
css: Converted notifications page to Bootstrap v3.0
css: Converted upload result page to Bootstrap v3.0
css: Converted tracking pages to Bootstrap v3.0