renamed lib/runscripts/local.run to lib/local.sh since the things it defines are not just for runscripts

lib/runscripts/local.run: added mysqldump_local, which uses vegbiendev

lib/runscripts/local.run: use postgres_compat mode because all our MySQL schemas should be usable as inputs to my2pg

lib/runscripts/local.run: added connection vars for local (bien) user

lib/util.sh: moved unalias inside include guard since it is not needed by anything before the include guard (even though it is used by commands outside the include guard, i.e. when the include guard is temporarily closed and reopened to load/unload aliases)

lib/util.sh: use declare instead of local in aliases so that the aliases can also be used outside a function (declare will create a local var when used inside a function, and a global var otherwise)

lib/util.sh: zip: ignore "zip has nothing to do" exit status as this is not an error

lib/util.sh: added exception-handling (i.e. error-suppressing) functions

bugfix: lib/util.sh: echo_func alias: moved it outside the include guard because the unalias statement is needs to be outside the include guard, and therefore so does the alias statement in order to always restore the alias

lib/util.sh: renamed echo_func_ () back to echo_func () and instead add an unalias statement before the if statement containing the function definition. this is necessary because if statements are "compound commands", which have aliases expanded when their definition is read (i.e. at the beginning of the if statement, for the entire if statement), not when they are executed, and any aliases for function names in them need to be unaliased before the if statement containing the function definition. this is necessary even if the if statement is not executed, because the expansion of such aliases will cause syntax errors in the parsing of the if statement itself....