Update contribution guidelines

Replace commit signing process with https://cla.strongloop.com/
package: remove module names from keywords
v1.0.0
Merge tag 'v1.0.0'

v1.0.0
Merge branch 'release/1.0.0' into production
status: include current set-size
Merge pull request #42 from strongloop/feature/pm-support

status: include current set-size
v1.0.1
Merge branch 'release/1.0.1' into production
Merge tag '1.0.1'

v1.0.1
package: update lodash to ^2.2
v1.0.2
Merge branch 'release/1.0.2' into production
Merge tag 'v1.0.2'

1.0.2

 * package: update lodash to ^2.2 (Sam Roberts)