defined before using it as argument for isURLAncestorOf.

@vpelletier, this caused a bug, since empty came_from would crash isURLAncestorOf when urlparse is called for this url (https://lab.nexedi.com/nexedi/erp5/blob/master/product/ERP5Type/Core/Folder.py#L517). I think this is a way to solve, I do not know if isURLAncestorOf should be changed also to return something in such situation. 

/reviewed-on nexedi/erp5!89

This ERP5 service worker provides the same functionnality than appcache (nothing more).
No need to activate it while appcache is still the only techno supported by most browsers.

in this context, int index is priority

This caused reports to be skipped sometimes

getOwner returns a python document.

Only support Base_jumpToRelatedObject for now.

fix the keys adding 'portal_type_workflow_chain/'
in _importFile, preinstall and export."

This reverts commit 6f8221b6.

This commit cleaned inconsistent prefix manipulation in
PortalTypeWorkflowChainTemplateItem. It passes the test suite,
however it was found to produce incompatibility with previously installed
business templates. In 'Upgrade Business Templates from Repositories"
there was a diff of PortalTypeWorkflowChainTemplateItems like:
Portal Type Name -> New
portal_type_workflow_chain/Portal Type Name -> Removed
For some reason the upgrade process would remove the chain
without adding the new element.

We are working on a clean solution, but since this needs more testing
I revert this commit for now so that master version does not cause
problems to users.

parameters "develop = false" and "revision =" are now set every time

fix the keys adding 'portal_type_workflow_chain/'
in _importFile, preinstall and export.

ReportSections are rendered as 'embedded' forms.

As selections are not used in erp5js, any python code (TALES expresssion for example) accessing them will not return the expected value. Such code should probably be rewritten (no idea how yet).

Add Semaphore functionality on adding Log to history.

Implementation of Delivery Receipt sending. Delivery Receipt hadnling is
not implemented yet.
http://xmpp.org/extensions/xep-0184.html

clients which support xep-0184
adnroid: https://conversations.im/ https://www.xabber.com/
linux: http://psi-plus.com/

/reviewed-on nexedi/erp5!76

business templates were brought to previous format,
removing 'portal_type_workflow_chain/' prefix

remove 'portal_type_workflow_chain/' from the keys in export.
This is added in _importFile and in build the key becomes the portal type
So if the business_template was exported without being built there was a diff.

Portal Type as Classes: Fix memory leak: Workflow method list was never emptied and thus reset Workflow Methods were never GC.