Merge pull request #138 from Hounddog/bugfixes

Bugfixes
Linked logo back to home page
added priority for home route
"avatar" class name for img tags with avatar
Max width for avatars
add view helper for render a composer.json, and write a new tab in a module page
bf manage exception composer.json not exist
Head title and description on module page
RSS Feed link in content
Merge pull request #141 from snapshotpl/master

Fix default size on small screens
Merge pull request #145 from GianArb/86

Feature #86 add Composer tab
Merge pull request #150 from snapshotpl/rss

RSS Feed link in content
Changed caching and filtering of modules
Fixed php cs
Merge pull request #154 from Hounddog/caching_bug_modules

Changed caching and filtering of modules
Fixed license formatting in module view #151

Enclosed license content in <pre></pre> as suggested by @snapshotpl in #151.
Removed unnecessary space.
Fix refreshing updated modules
Use cache if first repo is not modified
Clear cache only when module was changed