Move Online Help Documentation from Webhelp into Trunk

This Jira has been created to manage the migration of all the documentation from the Webhelp branch into the current help system so that it will work with what we already have (essentially so that we dont lose it!). The original issue for the Webhelp is OFBIZ-4941

As well as HR, there is also online documentation for Accounting, Manufacturing (English, German and Dutch), Project Manager and Catalog - though not as complete, so I will be consolidating and moving those too. The files use the docbook format and are compatible with what we have although he implemented everything into one file (i.e book) per module. I now think this is the better way to go.

Update as at July 2015
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The original code from the Webhelp branch was updated and converted to an OFBiz addon.
The addon was created from the Webhelp branch but is setup as an addon.

To see a what the webhelp will look like and function like.

Go to https://demo.ofbizextra.org/accounting/control/main
Login as admin/ofbiz

Select HR and then click the help button (The docbook webhelp should be displayed)

As well as using docbook and webhelp for displaying it. Some additonal funcitonality has been added. These are as follows:

1) There are some ant targets created (e.g. ant webhelp, clean-webhelp)

2) There is a flag setup to indicate whether a module has webhelp or uses OFBiz standard help (i.e. what we are using now).

To test it on the ofbizextra demo

Select Facilities and then click the help button (The normal OFBiz help menu is displayed because no webhelp exists for this module)

I think this could be good thing as we convert the existing documentation from the current online help format to the webhelp because it wont break anything and leaves the option open for people who are using the existing help system.

3) There is also some functionality related to language that looks at the language of the user to see if the webhelp exists in that language. If it doesn't there is a message saying so but that documentation exists in another language

The addon uses the patch Files. (.patch) I think this is because the addon tries to maintain compatibility with different OFBiz versions but I think it's still just xml or java code.

I have done an initial (non technical) analysis of the files and attached that too