Merge pull request #1 from m0k1/master

Update AboutDialog.ui
Move screenshot to master
Fix CMake policy CMP0020 warning
Fix CMake policy warning
Use static methods of QFileDialog
Stupid comment
Hide console window in Windows build
Fix width of line number widget
Remove excess whitespace
Add status bar

For now it displays only the current line and columne numbers, but I'm
going to add more stuff later.
Add support for block indent

Use the Tab key to indent selected block of code.

Shift + Tab doesn't work yet.
Update screenshot
Add Shift + Tab support
Increase cursor width
Flat settings
Change default window size to 800x600
Set organization to "SAMP"
Add Indentation menu

This menu lets you change indentation settings, such as tab width or
whether to use tabs vs. spaces when indenting code.
Remember last open directory
Add more info to RC file