In 2.11.3 we started adding `\addlinespace`, which produced less
dense tables. This wasn't an intentional change; I misunderstood
a comment in the discussion leading up to the change. This commit
restores the earlier default table appearance.
Note that if you want a less dense table, you can use something like
`\def\arraystretch{1.5}` in your header.
Closes#6996.
+ Remove the `\strut` that was added at the end of minipage
environments in cells.
+ Replace `\tabularnewline` with `\\ \addlinespace`.
Closes#6842, closes#6860.
We now have LaTeX do the calculation, using `\tabcolsep`.
So we should now have accurate relative column widths no
matter what the text width.
The default template has been modified to load the calc
package if tables are used.
* Markdown writer now includes a blank line at the end
of the row in a single-row multiline table, to prevent it from being
interpreted as a simple table. Closes#4578.
* Markdown reader does a better job computing the relative width of
the last column in a multiline table, so we can round-trip tables
without constantly shrinking the last column.
