Issue: Lite Version

As of Gamma 4, the Lite Version exists.

Licensed members can try it out by setting:
in vault/config.php
Alternatively, you will automatically have the Lite Version activated if you fail to include the following in vault/config.php as of Gamma 4:
Of course users who have not purchased a license will not be able to enable full functionality simply by editing their config files. Our compiler will take care of that by removing the blocks that are affected by this setting when we build the Lite Version separately for distribution.

This design choice has a number of advantages. First and foremost, the full version and the Lite version are developed as one product. If a bug gets fixed in the full version, the change automatically gets applied to the Lite version too. This resolves a significant problem we had with managing the development of VW3 Lite, where the code essentially forked at 3.0.0 RC 1 and changes could not be easily applied to one or the other.

Additionally, the Lite version is easier to test when users are having problems with it. We don't have to maintain a separate test installation for it, since all we need to do is tell VaultWiki to go into Lite mode via the config file.

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VaultWiki Lite differs from VW4 in the following ways:

• There is no wiki attachment/upload system
• There are no books/chapters
• There are no categories
• There are no social groups
• There are no templates
• There are no anonymous pages (islands)
• There are no special pages
• There are no synonyms
• There are no languages/translations
• There are no prefixes
• URLs are not customizable
• Edits are not moderated
• You cannot make areas have child areas
• You can only have 1 discussion per page
• The discussion can only appear on a separate tab
• You cannot manage the sidebar
• You cannot undo edits or remove old edits
• You cannot edit one page section at a time
• You cannot have custom permissions for each area
• You cannot have user-level access masks
• You can only use WIKI, H, and COMMENT BB-Codes
• There are no auto-links
• You cannot access the Syntax Manager
• You cannot import data from other wikis
• You cannot protect pages or unused titles
• You cannot use the forum's tagging system on wiki pages
• You cannot post wiki blocks on other forum pages
• You cannot adjust user-level wiki preferences
• You cannot view user stats on a user's profile
• You cannot resolve conflicts between pages with similar URLs
• other minor differences I don't remember

I will close this issue once I update the compiler to output Lite XML with each release, and when the upgrade path for Lite has been written.

Compiler now supports Lite XML output, and the upgrade path is written. Marking this as Complete.

Lite version will be released alongside the next release.