Fixes #4008. Sets a vertical align for admin icons consistent with the text, and set it as before (baseline) for heads.
Refs #4008. Modified CSS selector to be more specific.
Fixes #4926: prefetches entities to be displayed in river
check entity cache first, and remove limit (from Paweł Sroka's branch)
river prefetch: Don't call elgg_get_entities if no GUIDs to fetch
Don't hit DB on elgg_get_config after putting all configuration into local object
elgg_get_config: Don't generate NOTICE if $value not set
Merge branch 'optimize-elgg_get_config' into 1.8
Added caching of all subtypes with single query
Subtype functions cleanup
Merge branch 'optimize-subtype-loading' into 1.8
Fixes #4937: Metadata cache is purged when entity cache item removed
Merge branch '4937-18-md' into 1.8
Merge pull request #442 from mrclay/4926-18-riverfetch

Fixes #4926: prefetches entities to be displayed in river
Merge pull request #298 from sembrestels/icons-valign

Fixes #4008: Consistent icon alignment in admin area
Make metadata prefetch respect access
Merge commit '4e85a7e00517fefa817b643827e7faae9e289992' into tmp_merge
Merge commit 'd87c0ce422debe2a5b986a55b66c4b804c4b5927' into tmp_merge
Merge commit '2ac189cb0ab26c10e7feda980402d54e5b6dbf3e' into tmp_merge
Merge commit '9168cf7df39e404516c45f77bd64b47b3c61c75d' into tmp_merge