[log] fix details filters: proper case-insensitivity
[log] store text filter history
[log] make edges thinner, circle smaller, looks more accurate
WEB-9760 Allow convert CSS colors to textual ones
WEB-9759 CSS color "Convert to hex" intention missing
[log] Fix NPE
fix race condition: IDEA-115325 NPE on compile
catch abstract method error and report incompatible plugin (IDEA-114712)
Remove unused class.
Minor changes: remove unnecessary cast.
Minor changes: remove unnecessary qualifier.
Minor changes: avoid warnings: make methods static if possible.
Minor changes: replace string concatenation with StringBuilder.
Minor changes: remove unnecessary qualifier.