Adds unique classes to breadcrumbs output

With this change every bredcrumbs instance has a unique class
(breadcrumbs-x - x is an integer starting with 1) which can be used to
identify the instance directly (Template Blue Eagle).
Fix undefined variable in bbcode parser $twCacheTime
Merge pull request #2249 from xillibit/kdevelop-patch

Fix undefined variable in bbcode parser $twCacheTime
Thank you is rendered like link and not like button
Make working unthankyou because it has been disappeared
K 3.0.4: IE 10+ offsets display of image lightbox popup too far right #2282
Merge pull request #2307 from 810/master-fix

K 3.0.4: IE 10+ offsets display of image lightbox popup too far right #2282
K3.1 feature-hmvc: Backend Category manager missing string #2311
Convert mootools script into layout map to jQuery
 K3.1 feature-hmvc: Stats broken #2308
Merge pull request #2327 from xillibit/k31_bugs9

Convert mootools script into layout map to jQuery
Merge pull request #2328 from xillibit/k31_bugs16

 K3.1 feature-hmvc: Stats broken #2308
Merge pull request #2326 from xillibit/k31_bugs3

K3.1 feature-hmvc: Backend Category manager missing string #2311
Fix issue in javascript maps
#2174 Limiting attachments to 0 doesn't do what is expected (backport)
Kunena backend the buttons cancel doesn't react (backported from 3.1)
Merge pull request #2329 from xillibit/k30_bugs3

Fix issue in javascript maps
Backend Userlist : If you change filters some users are missing #2261
K3.0.4: No "Create Account" button on Blue Eagle template mobile #2297
Update kunena.default.css

Added h3 to the previous h2 style