Netjsonconfig

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- Changed default file mode for certificate files generated with
from ``0644`` to ``0600``

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- Dropped support for python 2.7
- Updated github buttons in documentation which were causing an unintended redirect
- Updated the jsonschema library to version 3.x

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- `113 <https://github.com/openwisp/netjsonconfig/issues/113>`_:
[bugfix] Made "encryption none" explicit in OpenWRT
- `5ddc201 <https://github.com/openwisp/netjsonconfig/commit/5ddc201>`_:
[bugfix] Fixed invalid UCI name bug in default OpenWRT renderer
- `118 <https://github.com/openwisp/netjsonconfig/issues/118>`_:
[bugfix] Fixed ``TypeError: can only concatenate list (not "str") to list``
- `137 <https://github.com/openwisp/netjsonconfig/issues/137>`_:
[tests] Migrated tests to nose2

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- `106 <https://github.com/openwisp/netjsonconfig/pull/106>`_
[extensions] Query backends from installed packages
(thanks to `EdoPut <https://github.com/EdoPut>`_)
- `109 <https://github.com/openwisp/netjsonconfig/pull/109>`_
[doc] Added reference to plugin interface
(thanks to `EdoPut <https://github.com/EdoPut>`_)
- `99 <https://github.com/openwisp/netjsonconfig/pull/99>`_
[cli] print traceback fully if the verbose flag is passed
(thanks to `EdoPut <https://github.com/EdoPut>`_)
- `108 <https://github.com/openwisp/netjsonconfig/pull/108>`_
[openvpn] Added more options to the OpenVPN backend
(thanks to `okraits <https://github.com/okraits>`_)

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- `78 <https://github.com/openwisp/netjsonconfig/issues/78>`_
[base] Added support for multiple renderers
- `94 <https://github.com/openwisp/netjsonconfig/issues/94>`_
[schema] Made ``bssid`` not required for wireless stations
- `97 <https://github.com/openwisp/netjsonconfig/issues/97>`_
[python2] Fixed ``py2-ipaddress`` related unicode bug

--------------------------

- `5ddc201 <https://github.com/openwisp/netjsonconfig/commit/5ddc201>`_:
[general] Avoid default mutable arguments
- `dde3c9b <https://github.com/openwisp/netjsonconfig/commit/dde3c9b>`_:
[openvpn] Added explicit ``list_identifiers`` attribute
- `8c26cd6 <https://github.com/openwisp/netjsonconfig/commit/8c26cd6>`_:
[docs] Updated outdated OpenWRT rendering examples
- `5f8483e <https://github.com/openwisp/netjsonconfig/commit/5f8483e>`_:
[openwrt] Fixed repeated bridge gateway case
- `84 <https://github.com/openwisp/netjsonconfig/pull/84>`_
[exceptions] Improved validation errors
(thanks to `EdoPut <https://github.com/EdoPut>`_)
- `85 <https://github.com/openwisp/netjsonconfig/issues/85>`_
[openwrt] Added "vid" option in "switch"
- `86 <https://github.com/openwisp/netjsonconfig/issues/86>`_
[openwrt] Added support for "ip6gw" option
- `70 <https://github.com/openwisp/netjsonconfig/pull/70>`_
[feature] Backward conversion
- `87 <https://github.com/openwisp/netjsonconfig/issues/87>`_
[openwrt] Removed automatic timezone