Nextflow

- Added ability to resubmit task executions changing resource requirements. See 70
- Added support for private SCM servers and private Gitlab repositories. See 38
- Added `workflow` metadata and execution `onComplete` notification handler. See 79.
- Added `publishDir` directive. See 81.
- Added extension method `mklink` to create file system links.
- Added Apache Ignite based executor.
- Removed deprecated GridGain executor.
- Updated Capsule to version 1.0.1.

- Fixed 78. Command line parsing of parameters does not handle some strings properly.
- Fixed 80. Command line argument containing a glob pattern is expanded even when escaped or enclosed in quote characters.

- Fixed 74. Operator "spread" hangs when it is applied to a singleton channel.

- Fixed 72. Adding cache support for `collectFile` operator.
- Added experimental operator `until`
- Added `self-update` in the command usage help
- Updated Capsule to version 1.0
- Updated to Gradle 2.7

- Merged 68. Add `engineOptions` setting to Docker configuration.

- Improved `groupTuple` operator adding the support of `size` and `remainder` parameters.
- Fixed issue 47. Creation of scratch folder on Mac OS-X.
- Fixed issue 64. `Channel.fromPath` throws an exception when curly brackets glob pattern is used with a S3 path.
- Fixed issue 65. An input file that is staged from a foreign file system lost it's original name.
- Fixed issue 66. Git submodules are not cloned/updated when a pipeline project is pulled from a remote repository.
- Fixed minor issue when evaluating config lazy property with no binding object.
- Updated Capsule to latest version () fixing an issue that was preventing to add a custom path to the application classpath.
- Added Path matches extension method [experimental].
- Added support for `into` parameter to `splitXxx` operators.
- Changed signature of `close` operator so that it returns the channel to which it is applied.