Graphannis

Added

- Added generic operator negation without existence assumption,
if only one side of the negated operator is optional (187).

Added

- Added generic operator negation with existence assumption by adding `!` before the binary operator (186)

Changed

- Compile releases on Ubuntu 18.04 instead of 16.04, which means the minimal GLIBC version is 2.27
- Updated dependencies
- Improved compile time by disabling some dependency features.
This also removes some optional features from the command line parser
(used in webservice and CLI binaries).
- Don't use RIDGES corpus in search tests and fail search tests when corpus does not exist.

Fixed

- Use the correct `set-disk-based on` command in the documentation for the CLI
- Optimize node annotation storage and graph implementations when importing GraphML files

Fixed

- Fix issue when deploying release artifacts on GitHub

Fixed

- Assume that the `annis::node_name` annotation is unique when estimating match size.
This should improve e.g. subgraph-queries, where the intermediate result sizes are now better estimated.

Changed

- The default context sizes in the corpus configuration now include 0 (181)

Added

- Add export API