Added functions to modify permissions of iRODS data objects
Updated tests (missing from previous commit)
Added json-chmod command line program.

Added new recurse parameter to permission-setting functions.

Refactored JSON permissions format to use both 'access' and 'level' keys.
Merge pull request #32 from keithj/devel

Added functions to modify permissions of iRODS data objects
Added functions to obtain JSON ACLs for data objects and collections
Added ACL lists to returned JSON objects
Updated API documentation and copyright statements.
Added get_user function

Added query builder for data object ACL queries

Changed is_irods_available function to use NO_RECONN
Merge pull request #33 from keithj/json-chmod

Added functions to obtain JSON ACLs for data objects and collections
Merge pull request #34 from keithj/acl-and-date-queries

Added get_user function
    Added functions to map symbols access levels to and from ICAT.

    Can now search by combination of metadata and/or access level

    Added zone hint to ACL listing

    Return iRODS CAT_INVALID_ARGUMENT where appropriate
Added result printing option flags

Made printing of AVUs and ACLs in results optional via CLI arguments

Fixed memory leak in query inputs (caused by key-value pairs)
Added Sphinx documentation build

Added log rotation to zlog config to prevent zlog trying to use the
installed configuration file as a lock file (and failing because it is
read-only).
Added missing baton.pc.in and removed from .gitignore the pattern
matching *.in

Removed print_json calls from tests.
Added missing call to list collection AVUs.

Added comments about the ZLOG_CONF variable.

Fixed documentation typo.
When listing a collection, list the collection itself as the first of
the returned collection values, followed by its contained collections.
Fixed memory leak caused by nit freeing query outputs

Added free_query_output function
Documentation updates
Added targets for code test coverage using lcov
Merge pull request #36 from keithj/devel

Final changes for release 0.7.0