0.10.2

This release contains multiple fixes:

#67, #73: Fix NullPointerException on opening plugin settings without open project.
#71: Do not highlight extend block for custom options in proto3 as error.
#69: Fix rare ClassCastException when running "go to class action".
#72: Fix resolving references to types defined inside of oneof + group blocks.
#43: Fix build failures on some environments.