Lots of 3D improvements:
-Object Manipulator Gizmo keeps proper scale in all windows and projections, (configurable on settings too).
-Manipulator gizmos for other objects (camera, shapes, etc) massively improved and bug-fixed.
-Manipulator gizmos are different for edited object and other objects.
-Properly highlight manipulator gizmo handles when hovered.
-Fixed bugs in fragment program when using more than 1 light together.
-Reload png/jpg files automatically in editor if edited externally.
-Added 4-stages Parallel Split Shadow Mapping, to improve shadow quality in large scenarios
-Added PCF13 to improve smoothness of shadow borders
-General optimization of directional light shadow mapping for Orthogonal,PSM and PSSM.
-Fixed normal mapping when importing DAE files, works nicely now.
mini-fix
Another small fix
fix z-buffer issues on x11/mesa
Merge pull request #371 from SystemFail/master

fix z-buffer issues on x11/mesa
Start working on script editor help
Add get_word_under_cursor() method to TextEdit
EditorNode consume F1 key only when Shift or Command key not pressed at the same time
Update EditorHelp to response help request other than class; Make sure EditorHelpSearch dialog popup with search results
Implement Shift+F1 as contextual help hotkey for script editor; There's
one bug that when jump to help tab first time, the scroll position is
wrong.
Merge pull request #373 from marynate/PR-contextual-help

Contextual help for Script Editor
Add auto code completion (without press Ctrl+Space manually)

Disalbe auto code completion even there's only one option

Hide auto-completion if only one completion option and it's been typed

Support use tab key to accept code completion option
Press F key in 2d editor to center view to selected node

Press Ctrl+F to frame selected nodes in 2d editor

Change Frame Selection hotkey in 2d editor from Ctrl to CMD for Mac compatability
Merge pull request #374 from marynate/PR-code-complete

Add auto code completion (without press Ctrl+Space manually)
Merge pull request #375 from marynate/PR-2d-editor-F-key

Add F and CMD+F hot key for center/frame selected node(s) in 2d editor
call during autocompletion
remove degud output
Merge pull request #379 from jonyrock/auto_brace_complete_open_bug_fix

call during autocompletion
Add lock and group icon to scene tree editor
Fix crash in editor when open new scene in editing

resources_dock->cleanup(); // This will delete GDScript instance (if property_editor->obj is scene's GDScript instance, editor will crash)