Fixed DBS client that caused part of file status update(Issue #398), fixed DBSSetFileStatus script(issue #399), upgrad listFileSummaries APi to allow user to count valid file only, update lexicon.py to borden DBSUser validation.
Merge pull request #402 from yuyiguo/Aug2014-release

Fixed DBS client that caused part of file status update(Issue #398), fix...
add new client side unit test for listFileSummaries API
typo
Merge pull request #404 from yuyiguo/Aug2014-v2

Aug2014 v2
cleanup no used code and removed junks
Merge pull request #405 from yuyiguo/cleanup-201408

cleanup no used code and removed junks
various upgrade and bug fixing for HG1410 release.
fix bugs for HG1410 release.
fixed a wrong order.
make the code easy to read
Merge pull request #411 from yuyiguo/DBS_3_2_6_pre2

Dbs 3 2 6 pre2
update client for listBlocks with open_for_writing.
Merge pull request #412 from yuyiguo/HG1410-client

update client for listBlocks with open_for_writing.