there are two type of overlay colors:
* user scope (every user account have custom color schema)
* system scope used when user colors are not defined

search for multiple drugs returned from time to time more results than
queried

connection

Issue 37

issue #37 resolved

See merge request !1

# Conflicts:
#   annotation/src/main/java/lcsb/mapviewer/annotation/cache/BigFileCache.java