isEap = false, no error reporting
use backported V8 CHM only for Oracle or Apple JDK (IDEA-116404 Java code compilation does not work with IBM JDK)
added signing for community launchers in zip distr.
better colors? fix balloon and popup borders

(cherry picked from commit b749bf19d4af2943dc61e7805c25603656ec6a54)
utility class holding two colors for gradient painting

(cherry picked from commit 01e97482452f6a3adf66bb2d83d7e653de6f0229)
add history

(cherry picked from commit 6dafd1d921076d4b6c4cf820b4f8497fb036f09c)
update artwork for version 13

(cherry picked from commit c10229028c8745bf7bfc3bf8c2534b2e072ce87d)
make IntelliJ laf by default on Linux

(cherry picked from commit e11330e69a307a638385ea5b626eaf7dfb98ce4a)