Introduce Faq

Introduced faq. Started with reducing memory usage.

Update fork

[MRG] Fix #15 extraction of cell data discarding overlapping text boxes

[MRG] handlers: Close file streams explicitly

No harm in closing these streams explicitly. Best case
scenario, this prevents descriptors leaks...

Language added to confirm proper installation of ghostscript libraries

[MRG] Prevent taking max of an empty set

[MRG] Add encoding kwarg to camelot.core.Table.to_html method

Use correct re.sub signature

Update core.py

Correct method camelot.core.Table.to_html

`text_strip` currently passes the regex flags as the count parameters, which is hardcoded to `re...

[MRG] Save plot when filename is specified

Update advanced.rst

[MRG] Revert the changes in v0.8.1

Change error name and update pdfminer.six version

Update install.rst

MacOS now uses zsh by default. Square brackets must be escaped in zsh

[MRG] Fix test data and drop python2 support

Bugfix plot example.

[MRG] Unit tests for the version generation

Applied black formatting

[MRG] Update how-it-works.rst

Unit tests for the __version__.py generate_version method.

minor typo

[MRG] Use assert_frame_equal for more informative errors in tests

[MRG] Update python-tk link

[MRG] Add opencollective url

Update README.md

[MRG] Add 3.7 version to installation docs

Fixed calling convention of callback functions

Fixed library discovery on Windows

[MRG] Update flavor kwargs

[MRG] No need to monkey-patch Click.HelpFormatter

[MRG] Fixed strip_text argument getting ignored

[MRG] Add code style: black badge to README.md

Now PR #1 got merged, we can wear this proudly :)

[MRG] Blacken code