tell user about sage crash before doing dev work

[rwst]

Due to a missing SPKG Sage did not build, but when I wanted to sage -dev push it said

Developer interface disabled.

To develop for Sage you must compile Sage from its git
repository. This just amounts to running

    git clone git://github.com/sagemath/sage.git
    cd sage
    make

See http://trac.sagemath.org/wiki/QuickStartSageGit for slightly more
information.

Rather it should give the same Oops, Sage crashed... message which it does when I try to start it without options.

Component: user interface

Keywords: crash message

Issue created by migration from https://trac.sagemath.org/ticket/15838

[rwst]

comment:4

wontfix because of removal of dev scripts, see https://groups.google.com/forum/?hl=en#!topic/sage-devel/JtVWAdvw-3A