Adding a read_line() from sshirokov/cgc
Retab stl_read_text_object
Update callsites to use read_line(FILE*, ..)
YAY POSIX
Start collecting utils in utils.h

Starting with read_line
Move the docs to the header
Failing test scaffold
Line reader fixtures
some passing, some failing tests.
Scaffold for trim and downcase in read_line
Add str_trim
Implement downcase
Call the method fucking right.
More polite EOF handling
Tests for a bunch of things
Blank line reader test
Add some long-line data
Long lines test.
Adding a new cube, with newlines
A dramatically failing test for an STL with blank lines