rm newsletter (bug 1101219)
Merge pull request #812 from ngokevin/rmnewsletter

rm newsletter (bug 1101219)
fix loadmore button on new/pop pages, clean some feed css (bug 1101568)
Commit from Mozilla Verbatim by user brnet00@gmail.com.: 87 of 335 strings translated (0 fuzzy).
Merge branch 'master' of github.com:mozilla/fireplace
fix install button text vert centering
Commit from Mozilla Verbatim by user brnet00@gmail.com.: 127 of 335 strings translated (0 fuzzy).
Merge branch 'master' of github.com:mozilla/fireplace
Commit from Mozilla Verbatim by user brnet00@gmail.com.: 322 of 335 strings translated (0 fuzzy).
Commit from Mozilla Verbatim by user brnet00@gmail.com.: 335 of 335 strings translated (0 fuzzy).
Removed 'has-recommendations' class, which is no longer used
Only show recommended tab for opt-in users (bug 1097332)