IDGXMLBuidlerTest: remove non-essential part of tests (XML definition and <doc> element)
Merge pull request #332 from kmuto/idgxml-remove-prefix-in-test

IDGXMLBuidlerTest: remove non-essential part of tests (XML definition and <doc> element)
remove comment
move $KCODE to supress warning in 1.9
Revert "support Ruby 1.8 :("

This reverts commit aa108c450e3d8975a089299fb3f1acc3deed5007.
add compat method of Enumerable#map in 1.8
remove unused methods
Merge branch 'master' into kpeg
experimental named-array support for EPUB to define file-as etc.
add epub:type='cover' attribute in cover file when it is EPUB3.
note about known bug
do not need compile_inline because content should have been already compiled
add arguments for defsyntax; array to specify whether arguments need compiling (:doc) or not (:raw)
initialize instance variable
Merge branch 'master' into kpeg