Make interval types follow naming convention
Make interval types follow naming convention

Boost interval names were all lowercase like "days" which conflicts
with variable names that would be normal.

Change-Id: Ib66c5e5f17f04e6d586b45fcfe828eb98c1d2e00
Reviewed-on: http://gerrit.cloudera.org:8080/577
Reviewed-by: Casey Ching <77bc9a9984e6786c5799d7a71768cf023120ef76@cloudera.com>
Tested-by: Internal Jenkins

cloudera/recordservice,cloudera/recordservice,cloudera/recordservice,cloudera/recordservice,cloudera/recordservice,cloudera/recordservice,cloudera/recordservice