1.7 stuff

The master branch was reverted to 1.7 because it was very unstable (bugs and stuff that wasn't mentioned on the documentation page yet) - features will come back with 2.0

- fixed debug window
- fixed flexbox not sending drag events to it's children

- small docs updates for 1.7
- removed the examples because the are outdated

docs/objects/Textfield/setSelection.md

@@ -0,0 +1,27 @@
+## setSelection
+
+### Description
+
+Changes the color when selecting text.
+
+### Parameteres
+
+1. `number|color` foreground color - The text color.
+2. `number|color` background color - ´The background color.
+
+### Returns
+
+1. `object` The object in use
+
+### Usage
+
+```lua
+local basalt = require("basalt")
+
+local mainFrame = basalt.createFrame()
+local aTextfield = mainFrame:addTextfield()
+
+aTextfield:setSelection(colors.white, colors.blue)
+
+basalt.autoUpdate()
+```