add date to index, unbreak object push

Issue #1514 already corrected by issue #1348. Nevertheless, this commit improve code quality off the network plugin

Improve snap version generation and introducing metadata sharing with setuptools

Patch/pin deps

Signed-off-by: N林博仁(Buo-ren Lin) <Buo.Ren.Lin@gmail.com>

This patch specifies the exact release of the dependencies to pull in,
this avoids regressions and incompatibilities from the new upstream
changes.

The maintainer should check and bump the dependency version once in a
while and check for breakage.
Signed-off-by: N林博仁(Buo-ren Lin) <Buo.Ren.Lin@gmail.com>

This patch replaces the deprecated `version-script` key with new
Snapcraft metadata extracting features based on the `adopt-info` and
`parse-info` keys and the `snapcraftctl set-version` command.

This allows metadata sharing with Setuptools setup.py file.

Refernce:

    Extracting information from sources in snapcraft parts - doc - snapcraft.io
    https://forum.snapcraft.io/t/extracting-information-from-sources-in-snapcraft-parts/4642Signed-off-by: N林博仁(Buo-ren Lin) <Buo.Ren.Lin@gmail.com>

The snap version string generated by the `git` value of the `version`
key isn't mimicing the previous versioning style due to the prefixing
`v` in the git tag, this patch replace it with a custom implementation
based on the `version-script` key.

Note the `version` key is still required to exist due to schema
requirements, but has no effect when the `version-script` key is
defined.

Reference:

    Snapcraft version scripts - snapcraft - snapcraft.io
    https://forum.snapcraft.io/t/snapcraft-version-scripts/106Signed-off-by: N林博仁(Buo-ren Lin) <Buo.Ren.Lin@gmail.com>

Patch/improve snap packaging

The snapd version that supports the interface hasn't released to the
stable channel yet, and the Snap Store autoconnection isn't granted,
hold back the patch until both conditions are met.

This reverts commit c904a8a3 and (parts of) 108dc7ba.

Snapcraft supports `git describe` style snap version string generation
this patch exploits it.
Signed-off-by: N林博仁(Buo-ren Lin) <Buo.Ren.Lin@gmail.com>

This avoids the additional time to clone the already existing repository
Signed-off-by: N林博仁(Buo-ren Lin) <Buo.Ren.Lin@gmail.com>

This patch hardcoded the locale variables to use the `C.UTF-8` locale
which is the only locale that is available in the Ubuntu Core.

Additional information:

* The gettext-launch remote part - doc - snapcraft.io
  https://forum.snapcraft.io/t/the-gettext-launch-remote-part/9111
* The locales-launch remote part - doc - snapcraft.io
  https://forum.snapcraft.io/t/the-locales-launch-remote-part/8729
* Python cannot determine the locale used when inside a snap - snapcraft - snapcraft.io
  https://forum.snapcraft.io/t/python-cannot-determine-the-locale-used-when-inside-a-snap/9492Signed-off-by: N林博仁(Buo-ren Lin) <Buo.Ren.Lin@gmail.com>

Allow use of configuration files when installed as snap.

fix tablename cassandra export and variabilize the cassandra table-name

Closes #1403

Documentation is unclear how to get Docker information #1386 and also add a all target to the Pip install in order to install all dependencies

Curses's browser server list sorting added. 

add authprovider for cassandra export