Corrections of C# style, Documentation, and .gitignore changes, suggested by davispuh.

+Ignore ./Doc/** for GITHUB.
+Some C# style changes.
+Processed 'GUI.Emulator.cs' with @todo marks.
Corrections C# style 2nd part, more documentation.

+tab character corrected in Emulator.cs.
+process PluginEditor.cs and GearDesktop.cs with @todo doxygen marks.
Merge pull request #2 from gatuno1/master

Corrections of C# style, Documentation, and .gitignore changes.