Contests index button fix
Merge pull request #195 from gotar/button-fix

Contests index button fix
Titles correction, all site button correction, lang fix

Finished
[#285] - Some fixes on contests' views
Merge pull request #199 from gotar/286-Titles-check-and-fix

Titles correction, all site button correction, lang fix
Merge pull request #197 from gotar/285-fix-button-alignment-on-contests-index

[#285] - Some fixes on contests' views
Btn-group center align all index pages
Merge pull request #200 from gotar/Text-align-btn-group-fix

Btn-group center align all index pages
Refactor payment index for new layout

[#248]
Merge pull request #198 from gotar/284-payment-index-view

Refactor payment index for new layout
added competition#show view
added CompetitionHelper
added translation
added test checking whether the competion controller
properly renders show template, added tests for competition/show view and competition helper
removed the gray background
changed view and adapting changes in models