Windows-definitions-schema.xsd update

updated windows-definitions-schema.xsd under the
oval-def:EntityStateStringType with the following:
reg_dword_little_endian
reg_dword_big_endian
reg_link
reg_qword_little_endian
windows-system-characteristics-schema.xsd update

updated windows-system-characteristics-schema.xsd under the
oval-sc:EntityItemRegistryTypeType with the following:
reg_dword_little_endian
reg_dword_big_endian
reg_link
reg_qword_little_endian
windows-definition-schema.xsd update

updated registry_item datatype value entity documentation to include
REG_DWORD_LITTLE_ENDIAN
REG_DWORD_BIG_ENDIAN
REG_LINK
REG_QWORD
REG_QWORD_LITTLE_ENDIAN
windows-system-characteristics-schema.xsd

registry_item datatype value entity documentation to include
REG_DWORD_LITTLE_ENDIAN
REG_DWORD_BIG_ENDIAN
REG_LINK
REG_QWORD
REG_QWORD_LITTLE_ENDIAN
closes #132.
Mods to win def schema for issue #100

Modified embedded schematron rules in windows-definitions-schema to
check for additional illegal filename characters ('<' and '"').
Merge pull request #138 from LuisNunez/master

#102
update documentation for issue #102

sections 2.22 and 2.23. Also update to Appendix B- Change log to reflect
changes.
added new registry types to the Entity[State|Item]RegistryTypeType enumerations. closes #102.
merging in Jasen's updates for clarifying the documentation around malware and threat indicator sharing. closes #65.
merging Jasen's changes that allow for the version datatype on the freebsd:portinfo_test. closes #80.
merging Jasen's changes that clarify the mask attribute. closes #67.
merging Jasen's changes that clarify the schema documentation associated with OVAL Variable values. closes #122.
Merge branch 'master' of https://github.com/OVALProject/Language
updated to clean up

Conflicts:
	specifications/oval-windows-extension-specification.docx
Merge branch 'master' of https://github.com/OVALProject/Language
re-adding oval-windows-extension-specification.docx.
Added implementation notes to partition_state and partition_item
noting that not all mount options may be visible in /etc/mtab
and /proc/mounts, and some places to find them.

Fixes issue #133.
Merge remote-tracking branch 'origin/master' into cmaster
Merge pull request #140 from chisholm/master

Pull request for issue #133
closes #87.