feature/118_footer_strip

[astrochun]

Closes #118
See #203 (some changes here for interactive disabling for faster script run)

[astrochun]

I believe this fixes the issue with the excess footer.

A few things:
I tested this with two stage deposit under review. One with the footer and one without the footer. It appears to work as intended. The implementation is done before html2text parsing, thus using the markup text directly from Figshare.

At a later point when we decide to update the metadata, we should make sure the formatting is identically to what is intended.

[damian-romero]

I couldn't find the two test deposits in stage that you referred to here.

However, I reviewed the changes and they all look fine. I think for the sake of completing this before winterbreak we can close this issue since we'll be implementing further deposit checks later on.

[astrochun]

This feature won't be included in release/v0.17.0. The footer seem to vary with deposit.

For 12935162, the footer anchor appears to be: <br></p><br><br><hr><br><i>

[astrochun]

I have successfully ran a README.txt construction using footer_check script through as many deposits as possible.
Nearly all README.txt footer stripping happened as expected.

Some notable issues with handling of footer in Summary:
Christopher Frost: 13963886 (two carriage returns instead of three afterwards)
Gilby Jepson: 14298227 (extra carriage return after no other data, possibly due to an extra \n that we don't strip)
Julie Miller: 12020763 (extra carriage return, six total. Most likely an issue with the metadata)

README_footer_check.zip

UPDATE: Adding a strip for \n fixes 13963886. This is good for now.

[astrochun]

Changes look good