Travis got disabled and re-enabling it requires jumping through hoops.

(cherry picked from commit 461cf8d)

This was forgotten in 461cf8d.

(cherry picked from commit 91a9d12)

(cherry picked from commit 6ca1c93)

The max_buckets_used value is _inclusive_, so an additional +1 is
necessary to clear the last used bucket.

(cherry picked from commit 0303431)

(cherry picked from commit 282e619)

(cherry picked from commit ec62ccc)

(cherry picked from commit 2eeda6a)

Previously the source string locations pointed to the unreadable
lines in a non-tracked generated header, making the source string
location useless. This changes the script generating the header
to include information about the real source location for the strings,
which is subsequently turned into an accurate source location in the
script generating the po template file.

(cherry picked from commit 93cd844)

The new and more complete script `update_translations.sh` covers
all steps in the translation update process, with flags to control
or omit specific parts or selectively update languages.

(cherry picked from commit d8dcc0e)

Instructions now use the new script, without reference to intltool.
The intltool scripts have been mostly obsolete for a number of years.

(cherry picked from commit 5e576ce)

autogen.sh manually checks acceptable versions of automake. Previously
it wasn't aware of automake v1.17, but now it is.

Fixes #199

Signed-off-by: Aesara Binder <[email protected]>
(cherry picked from commit 4d4c7f8)