Bump version to 1.7.6.0-alpha
Bump version to 1.7.6.0-alpha

Signed-off-by: Maryam Labib <9e044e5aaf391f018389e0d1c79d0a0ef3f69396@pivotal.io>

pivotal-cf-experimental/ops-manager-example,pivotal-cf-experimental/ops-manager-example,pivotal-cf-experimental/ops-manager-example,pivotal-cf-experimental/ops-manager-example