Remover unused reference to the master branch

This command is failing

Speed up executing SQL statements in the Execute SQL tab

This improves the performance of executing multiple modifying SQL
statements, like INSERTs or UPDATEs, in the Execute SQL tab a lot by
not updating the plot dock after every single statement.

See issue sqlitebrowser#2572.

Update code according @mgrojo's review

Update Arabic translation (sqlitebrowser#2406)

sqlitebrowser#2405
# Conflicts:
#	src/translations/sqlb_ar_SA.ts

DB Browser for SQLite 3.12.0

Update version number for 3.12.0

Updating version number for 3.12.0-rc1

We're using 3.11.300 for the 3.12.0-rc1, in order to keep
numerically lower than 3.12.0, which will be used for the
actual release.

Only include the build date for nightly builds.

Our alpha and beta releases use patch numbers greater than 99, so
were being caught by the version string check.

Update version number to 3.11.2

The rebuilt macOS installer (v2) was generated from this tag.