Remove "Choices" and "Base/Increment" from Category

[ibboard]

As a method for implementing Warhammer 40K-style rosters and Warhammer-style "army composition depends on army size" the original design added the following attributes:

• minChoice
• maxChoice
• baseVal
• incVal
• incAmount

These should be removed, leaving categories to define min/max points and/or percentages. The functionality will then be re-implemented as plugins following ticket:33.

[ibboard]

(In r50) Re #32 - Migrate WarFoundry to schemas

• Add "WarFoundry-Core" schema to define numerical types with -1 taking a special value
• Add "WarFoundry-Cats" to store common category definition between race and system
• Add full system schema
• Add partial implementation of race schema

Re #34 - Remove choices and base/increment

• "WarFoundry-Cats" schema only includes min/max points and percentage

[ibboard]

(In r73) Fixes #34 - Remove "Choices" and "Base/Increment" from Category

• Remove Choices and Base/Increment from code

Re #47: Remove magic numbers

• Replace "-1" magic number with WarFoundryCore.INFINITY
• Use INFINITY instead of -1 in code
• Use INF in schemas instead of -1
• Handle and parse INF as a special value in XML Factory

[ibboard]

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