* Redminer::Command::filter: Unicode matching fixed, comments added
* Redminer::Command::iterate: minor bugs fixed
* Added initial version of batch-grant action
* batch-grant: added option `--dry-run`
* batch-grant: minor fixes
Minor improvements in README.md
* Redminer::Command::iterate: improvements for iterating over non-trivial objects
* create-project: permission copying respects arbitrary number of available permissions in the permission source
Added initial version of the `batch-revoke` command
`batch-grant` + `batch-revoke`: Code for processing `--project + --group + --user` filters extracted to Redminer::Command::permissionFilter
Minor fixes in comments and documentation
Redminer::Command::iterate: fixes for iterating over non-trivial objects
batch-revoke: bugs fixed
batch-update-projects: `--dry-run` mode implemented
create-project: Added support for is_public property (`false` by default; value is inherited by sub projects)