Some cleanup
Try-catch GetDirectories() call in PathExplorer#ExploreFolder()
Fixes Null References Error from ASCompletion.Context.ASContext->GetCachedFileModel() if ASCompletion.Context.ASContext->classPath == null
Fixes Null References Error from ASCompletion.Context.ASContext->GetCurrentFileModel() if ASCompletion.Context.ASContext->CurSciControl == null
small refactoring...
fix typo...
Merge pull request #433 from SlavaRa/fixes-ASCompletion.Context.ASContext

Fixes Null References Error and small refactoring
Refactored compiler-based Haxe completion - now parsing as XML and extracting the new k attribute.
Better processing of returned type (function completion).
Removing unused and windows-only references
Code improvement
Merge pull request #436 from SlavaRa/improvement-references

Removing unused and windows-only references
Merge pull request #434 from fdorg/feature/compiler-complete-refactor

Feature/compiler complete refactor
Merge pull request #423 from Gama11/GetDirectoriesCrash

Try-catch GetDirectories() call in PathExplorer#ExploreFolder()
Merge pull request #419 from Neverbirth/treeview

Some cleanup