new: get and parse tsv of earnings data

# Please enter a commit message to explain why this merge is necessary,
# especially if it merges an updated upstream into a topic branch.
#
# Lines starting with '#' will be ignored, and an empty message aborts
# the commit.
new: preferences - month, total
m
new: scrape TSV file to get total once a month
upd: version to 12.15
new: changelog for v12.15
new: v12.15 extension pack
Merge branch 'scrape-csv'