Rebasehelper

Added
- Added `--version` argument

Changed
- **Anitya** versioneer now primarily searches for projects using Fedora mapping
- Python dependencies moved from `requirements.txt` to `setup.py`

Fixed
- Made `CustomManPagesBuilder` work with Sphinx >= 1.6
- *%prep* section parser is now able to handle backslash-split lines

Added
- Implemented extensible SPEC hooks and versioneers
- Added **PyPI** SPEC hook for automatic fixing of Source URL of Python packages
- Added **Anitya** and **PyPI** versioneers for determining latest upstream version of a package
- Added possibility to download old version build of a package from Koji
- Added support for test suite to be run in Docker containers
- Implemented functional tests for automatic testing of whole rebase process
- Diff against original source files is now generated as *changes.patch*

Changed
- Introduced plugin system for extending build tools, checkers and output tools
- Updated for **Koji 1.13** which finally brings Python 3 support
- Improved output information and reports
- Added colorized output
- Improved project documentation

Fixed
- Pre-configured git username and e-mail address is now used if available
- Fixed several issues in **rpmdiff** and especially **abipkgdiff** checkers
- Fixed several test suite related issues

Added
- Old sources are now downloaded from Fedora lookaside cache
- Auto-generated and improved CLI documentation and man page
- Added support for downloading files of unknown size

Changed
- `SpecFile` class preparation for pre-download hooks
- Code cleanup and refactorization

Fixed
- Fixed regexp for getting release number from SPEC
- Fixed functionality of `--results-dir` option
- Several upstream monitoring fixes
- Fixed issues caused by Fedora Flag Day

Added
- Added support for JSON output format
- Added support for **copr** build tool
- Added support for passing arbitrary extra arguments to local builders (**mock**, **rpmbuild**) with `--builder-options`.
- Added new option `--build-retries` allows the user to specify number of build retries (by default *2*)
- Added support for **csmock** check tool

Changed
- Renamed **fedpkg** build tool to **koji** to make it more clear
- Downloading of files is now done only using standard Python library and not using PyCURL

Fixed
- Many bug fixes and code clean up

Added
- Added `rpm.addMacro`

Fixed
- Handled exceptions raised during parsing of SPEC files
- Fixed unapplied patches mixing with deleted ones

Added
- Added information about scratch builds

Fixed
- Added check if file exists and is empty for **the-new-hotness**
- Patches are applied in case `--builds-nowait` option is used