[fp/r51136][ENH] maps: Allow map plugin searchlayers to set custom popup bubble size (per layer)
[FIX] Another missed merge from 12.x branch so this commit actually fixes some regressions, thanks Geoff

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/13.x@52144 b456876b-0849-0410-b77d-98878d47e9d5