Add yaml2ical release for 0.6.0

The list of changes from 0.5.0 .. 0.6.0:

    3dd31a4 Add functionality to batch the meetings list
    0559b4c Remove argparse from requirements
    f02d892 Add one off events for skipped meetings
    ddf64ae Add support for skipping/excluding meetings
    a8c789d start_date now supported in schedules
    d561ce4 Make help text less OpenStack specific
    81c242b Update docs to indicate requirements and expand example meeting

While we're adding this new library also import the history

Change-Id: I948c7eb8c60368ab477f734ef5bfd64daa919702

deliverables/_independent/yaml2ical.yaml

@@ -0,0 +1,32 @@
+---
+launchpad: yaml2ical
+send-announcements-to: openstack-dev@lists.openstack.org
+releases:
+  - version: 0.1.0
+    projects:
+      - repo: openstack-infra/yaml2ical
+        hash: 0d18942d98d025b4c30eebca03819736e0dee22f
+  - version: 0.2.0
+    projects:
+      - repo: openstack-infra/yaml2ical
+        hash: 40f12c0d63de705f7464be5dd7147884e0f1f7d4
+  - version: 0.3.0
+    projects:
+      - repo: openstack-infra/yaml2ical
+        hash: 8bc6cf87c5edd4dd3a6252f056f9074818f6d170
+  - version: 0.4.0
+    projects:
+      - repo: openstack-infra/yaml2ical
+        hash: ff513f9efe88138f3356412acca9980599e1bbd4
+  - version: 0.5.0
+    projects:
+      - repo: openstack-infra/yaml2ical
+        hash: f2ac69f2e34bfe7c7778bf3cec09ee975057e3f4
+  - version: 0.6.0
+    projects:
+      - repo: openstack-infra/yaml2ical
+        hash: b14b2fb3cf3d4080c249b0c21b6232160e2af352
+    highlights: >
+      - Add a startdate to a meeting rather than starting when yaml2ical is run
+      - Adds the ability to "skip" meetings on certain dates.
+      - Add a batching function to jinja2 to tidy up generated HTML