[vanyakosmos]

close #9
close #48

I marked text-file-format and doctest-rst as deprecated. But right now doctest-glob list is extended with "*.{text_file_format}" if doctest_rst is True. So text-file-format and doctest-rst will still work as expected.

Also comment chars are now determined by file extension instead of text_file_format and can be configured via ini variable text_file_comment_chars

[pytest]
text_file_comment_chars = 
    .rst=#
    .tex=#

default ones are still:

comment_characters = {
    '.txt': '#',
    '.tex': '%',
    '.rst': '..'
}

[astrofrog]

I'm on board with this but see below for suggestions of wording. For now I'd like to hold off from actually deprecating the options and instead just recommend the --doctest-glob option, and that'll give us time to test out the new option in packages and transition a few before we properly deprecate things here.

[astrofrog]

@vanyakosmos - can you rebase this since there is a conflict in the test file due to #84?

[astrofrog]

Looks great, thanks!