fix F1-F4 on normal mode (do like xterm)

Tested on vim and mc.
gitignore: ignore config.cache-env

Summary: like config.cache, this should also be ignored.

Reviewers: billiob

Differential Revision: https://phab.enlightenment.org/D1300
autotools: we don't need to repeat ourselves

Reviewers: billiob

Differential Revision: https://phab.enlightenment.org/D1301
autotools: Fix MAINTAINERCLEAN rules

Summary:
We do not ship a .tar.bz2 but a tar.xz, thus we have to clean the
later.

Reviewers: billiob

Differential Revision: https://phab.enlightenment.org/D1302
have an exponential scale for scrollback
localize tab animation time
update po files.
main: follow coding style

Reviewers: billiob

Differential Revision: https://phab.enlightenment.org/D1310
extract csi_reset_mode
wordseparators shouldn't be in the config, the ui is unusable
fix out of bounds access. CID 1231069