[Stetic] Added sanity check that will hopefully fix some pain I've been suffering
[Debugger] Improve error messages when methods can't be found
[build] Bump monomac to get macdoc doc merging fixes
[Diff] Fix #2614.
Added hunk overlapping in Unified Diff.
Fixed weird bug.
It seems that the diff enumerable had a sentinel element.
Naming fix.
Reverted.
[build] Bump monomac/maccore to get macdoc rendering fixes
[Ide] Catch exceptions caused by bad input into the SdkLocationsPanel
[Debugger] Make the exception stacktrace treeview less ugly

Fixes bug #11708
Fixed 'Bug 12139 - "Implement abstract members" refactor operation does not generate stubs for inherited "abstract override" members'.
Track NRefactory API changes.
Fixed 'Bug 12150 - Cannot undo format-on-paste'.
Fixed 'Bug 12151 - Toggle Line Comments Hotkeys'.
Fixed 'Bug 12184 - Expression can be reduced to delegate fix can create ambiguity'.
Fixed 'Bug 12161 - #if being ignored with formatting'.
Merge pull request #280 from Therzok/udiffContext

[Diff] Fix #2614.