The iopipe_handlers modules not included in package when exclude/include used

[kolanos]

Description

If you use exclude and include in the package section of the serverless.yml then the iopipe_handlers modules can be excluded from the resulting package, resulting in a "could not find module" error.

Steps to reproduce the issue:

1. Update a serverless.yml with something like this:

package:
  exclude:
    - ./**
  include:
    - dist/**

2. sls deploy
3. Notice that invocations fail with a "could not find iopipe_handlers/..." error.

Describe the results you received:

Handlers return errors reporting that they can't find the respective iopipe_handlers module.

Describe the results you expected:

Expected iopipe_handlers modules to be packaged regardless of exclude/include rules.

Application and library versions

Tested with serverless 1.28.0 and latest version of plugin.

Additional information you deem important (e.g. issue happens only occasionally):

[ktwbc]

+1