Update enb-bem-techs to 0.1.0-beta11
Merge pull request #1040 from bem/update-enb-bem-techs

Update enb-bem-techs to 0.1.0-beta11
Updated `enb-bem-techs` to `0.1.0-beta12`
Merge pull request #1042 from bem/issues/1037@v2

Updated `enb-bem-techs` to `0.1.0-beta12`
Rename "normal" theme to "islands"

closes #1038
Fix typo in README
README: BH link fixed
Merge pull request #1041 from bem/issues/1038@v2

Rename "normal" theme to "islands"
popup: increase negative margin which prevents scrolling when big popup hidden