Change default download specification to PMHC 4.0

This matches the default in the PMHC web interface.
Bumped package version as this is a breaking change if you use the
default values.

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "pmhclib"
-version = "0.3.0"
+version = "0.4.0"
 description = "Python wrapper for unofficial PMHC MDS portal API"
 authors = [
  "David Wales <[email protected]>",

src/pmhclib/pmhc.py

@@ -325,7 +325,7 @@ def download_pmhc_mds(
  start_date: date = date.today() - timedelta(days=30),
  end_date: date = date.today(),
  organisation_path: Optional[str] = None,
- specification: PMHCSpecification = PMHCSpecification.ALL,
+ specification: PMHCSpecification = PMHCSpecification.PMHC,
  without_associated_dates: bool = True,
  matched_episodes: bool = True,
  ) -> Path:
@@ -340,8 +340,8 @@ def download_pmhc_mds(
  organisation_path: PHN identifier (default: inherited
  from parent class.)
  specification: Specification for extract. (default:
- `PMHCSpecification.ALL`, which returns data from all
- specifications.)
+ `PMHCSpecification.PMHC`, which returns data from the
+ PMHC 4.0 specification.)
  without_associated_dates: Enable extract option
  "Include data without associated dates"
  matched_episodes: Enable extract option