release: 3.0.0-alpha.3

Renamed --all to --cc-all
Added proxy and shim versions to cc-env
Improved test coverage

Shortlog:

c47a61f list: Rename option "--all" to "--cc-all".
818f4e5 docs: No need to install the virtcontainers pause package
2b7a161 docs: update developers-clear-containers-install.md
fe0f373 config: Remove unused variable
28d75ae config: Give TOML table type variables better names.
40af051 cc-env: Add in proxy and shim version details.
14e481f utils: Add a runCommand() helper function.
b3d30cd tests: Move testFileMode to main_test.go
799394c tests: Make testDirMode const.
f7759ac general: Rename cli commands.
433259f tests: Add a unit test version.go
5169afd create: Add Clear Containers specific kernel parameters
0435ecf vendor: Update virtcontainers vendoring
5bea53c build: Add containers/virtcontainers pause binary
18e9f4b tests: Increase unit test coverage for cc-check.go
5d0be97 cc-check: Add const for success message.
b10985f tests: Remove comment.
5f0248b cc-env: Increase test coverage for cc-env.go
fe099f6 cc-env: Simplify showSettings().
50e9681 cc-env: Remove redundant checks.
b7195d7 utils: Add comments and remove erroneous whitespace.

Fixes: clearcontainers#305
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>

VERSION

@@ -1 +1 @@
-3.0.0-alpha.2
+3.0.0-alpha.3