Carview!

@osiyuk

@mtn

In editorSelectSyntaxHighlight(), change the logic for filename pattern matching, so that filenames like kilo.c.c will work. (Thanks Ivandro)

@agacek

Near the end of chapter 6, add if (last_match == -1) direction = 1; to editorFindCallback(), to fix a segfault. (Thanks @agacek)
In the Scrolling with Page Up and Page Down section in chapter 4, add if (E.cy > E.numrows) E.cy = E.numrows; to editorProcessKeypress(), so the cursor stays within the file. (Thanks @agacek)
At the beginning of chapter 3, remove the keypress printing code during the refactor-input step instead of the ctrl-q step, and make it clear that you're supposed to remove that code. (Thanks @wonthegame)

Remove all newlines and carriage returns from the end of each line read by editorOpen(), by changing if (linelen > 0 && ... to while (linelen > 0 && .... This allows text files with DOS line endings (\r\n) to be opened properly.

@mapleray

In the Multiple lines section, make it clearer that the program doesn't compile for those steps. (Thanks @mapleray and @agentultra)

@fmdkdd

In editorPrompt(), change !iscntrl(c) to !iscntrl(c) && c < 128, so that we don't try to append special keys like the arrow keys to the prompt input. (Thanks @fmdkdd)

Replace all instances of isprint() with !iscntrl(), so that extended ASCII characters can be inserted and displayed in the editor.
Include font files in offline version of tutorial.

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