fix perms on *.in template files in src/main/bash/bin/

[salewski]

I just noted that the *.in program template files in src/main/bash/bin/ all have the execute bit set; they are not intended to be directly executable -- all of them should be 0644.

[salewski]

This issue has been fixed for 'ads-github-tools-0.3.1'

The blurb about it from our 'NEWS' file:

*** issue 53: fix perms on *.in template files in src/main/bash/bin/

    https://github.com/salewski/ads-github-tools/issues/53

    This was a minor in-tree cleanup activity. It was noticed that the *.in
    template files had their executable bit set, which was misleading. Those
    files are not intended to be directly executed, but rather are filtered at
    build time to produce the programs that /are/ directly executable. This
    was probably "origin cruft"; each of the programs was probably first
    implemented as a shell script which was then parameterized and otherwise
    modified to create the *.in template.