Collective-analyticspanel

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- Nothing changed yet.

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- Remove custom persistent field from registry.
[cekk]

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- Fix pypi classifiers
[cekk]

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- Plone 5 compatibility.
[cekk, mamico]
- Drop plone 3 compatibility.
[cekk]
- Fix tests and add travis config.
[cekk]

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- Added options to block analytics for user's privacy choices
[keul]
- Don't show analytics in views used on overlays (so with ajax_load paramiter)
[cekk]

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- Fix bug that prevented viewlet from being shown on plone sites
located in subfolders (eg. /project/Plone) which is quite common
when ZODB mountpoints are used. [fRiSi]
- Fixed a bug that randomly hit the installation (See `2`__) [keul]
- Fixed translations not shown in vocabulary [keul]
- You can now choose to put analytics before the ``body`` tag or
near the end of it. This close `1`__

__ https://github.com/RedTurtle/collective.analyticspanel/issues/2
__ https://github.com/RedTurtle/collective.analyticspanel/issues/1