Use gRPC instead of go-swagger

[drgarcia1986]

Macro vision checklist:

• Login ( Add gRPC support for user Login and SetPassword method #185 )
• create user ( Implement grpc create user #192 add email validation on user create #200 )
• delete user ( Add grpc delete user implementation #190 )
• create team ( Change Team Create to use gRPC instead of go-swagger #189 )
• team list ( Implement gRPC Team List #197 )
• team add-user ( Implement gRPC Team Add-User #193 )
• app create ( Finish grpc create app #207 )
• app env-set ( Implement grpc env-set and env-unset #213 )
• app env-unset ( Implement grpc env-set and env-unset #213 )
• app info (Implement grpc app info #208)
• app list ( App List (gRPC series) #244 )
• app logs ( gRPC - App logs #205 )
• deploy ( App Deploy (gRPC series) #211 )

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Extras:

• set-password command ( Add gRPC support for user Login and SetPassword method #185 )
• [server] create super user command ( Add command create-super-user in server command line interface #198 )
• TLS (some PRs of series)
• Release command phase ( Run release command from Procfile in Deploy flow #226 )
• Health Check ( expose a simple health check on a http server #230 )
• Version by tag (git) ( Implement versioning scheme based on ldflags #229 )
• minio slug storage ( Suport to Minio as slug storage backend #236 )

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Refactorings:

• cli configs ( Internal refactor on config commands of cli. #188 )
• bash completion ( simplify bash completion generation #187 )
• delete build pods after work ( App Deploy (gRPC series) #211 )
• standardize errors msgs format and server logs (server and client) ( [Proposal] Standardize errors and Logs with Middlewares #214 standardize errors and logs of server pkg #218 )

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Fun Stuff

• Unit Tests
• Travis CI (run unit tests against some golang versions ) ( add travis stuff #194 )

[drgarcia1986]

🎉