1.4.0 Deployments, notifications, timeline and multiple fixes

v1.4.0

• [Feature] Add timeline and user-timeline to display per are of user-global activities #235
• [Feature] Add list, remove and add commands for notifications
• [Feature] Add deployments command to get the a deployments list for an application #222 #234
• [Feature] Add deployment-logs command to get logs for a specific deployment
• [Feature] Add deployment-follow command to follow the deployment stream for an application
• [Feature - Login] Automatically try SSH with ssh-agent if available #262
• [Feature - Create] --buildpack flag to specify a custom buildpack
• [Fix] Fix error handling when an addon fails to get provisioned #252
• [Fix] Fix error display when an application doesn't have any log available #249
• [Fix] Fix error display when connection to the SSH server fails #242
• [Fix] Password typing error on windows (ReadConsoleInput error) #237
• [Fix] Login command logs twice #258