Implement rsid stripping for office files

MS Office XML rsid is a "unique identifier used to track the editing session
when the physical character representing this section mark was last formatted."

See the following links for details:
- https://msdn.microsoft.com/en-us/library/office/documentformat.openxml.wordprocessing.previoussectionproperties.rsidrpr.aspx
- https://blogs.msdn.microsoft.com/brian_jones/2006/12/11/whats-up-with-all-those-rsids/.

1 files changed, 0 insertions, 0 deletions

diff --git a/tests/data/office_revision_session_ids.docx b/tests/data/office_revision_session_ids.docx
new file mode 100644
index 0000000..b40a341
--- /dev/null
+++ b/tests/data/office_revision_session_ids.docx