fix #1351 -- make posts with code directive only work

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>
fix regeneration after NAVIGATION_LINKS change

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>
don’t generate STORY_INDEX if a conflicting story exists

This is a fix for the dreaded

    ERROR: Two different tasks can't have a common target.
    'output/index.html' is a target for render_pages:output/index.html and
    render_indexes:output/index.html`.

This works by checking pages that would appear in the index, and if
one of them has a matching destination (i.e. slug == index), the story
index is not generated.  Most users are likely to want it to work
this way.

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>
Merge pull request #1356 from getnikola/fix-story_index

don’t generate STORY_INDEX if a conflicting story exists
copy files/*.html verbatim (skip filters)

Use case: Google site verification.

And besides, verbatim copying is generally what a person putting .html
files in there would want (why not make them stories if that’s not the case?)

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>
fix #1355 -- mathjax now works with stories

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>
Merge branch 'master' into fix-1351

Conflicts:
	CHANGES.txt
Merge pull request #1352 from getnikola/fix-1351

fix #1351 -- make posts with code directive only work
little tweaks to the Polish translation

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>
Clear and float both directions instead of trusting defaults
test forced tornado version
it’s appveyor’s fault, it seems…
translations

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>
update livereload

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>
fix #1320 -- versioned requirements everywhere

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>
fix typo

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>
another typo

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>
add requirements badge and fix one last typo

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>
make the requirements a little bit less strict

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>
ipython goes more hardcore; fix phpserialize

Signed-off-by: Chris “Kwpolska” Warrick <kwpolska@gmail.com>