Update companies->getById + Remove unneeded defaults for files api

Merge pull request #361 from HubSpot/feature/bumpVersion

bump version to 3.2.0

Added addSecondaryEmail and deleteSecondaryEmail methods to contacts

Merge pull request #352 from HubSpot/feature/csfix

cs fix

Fixed Files API + Guzzle 6 or 7

Merge pull request #340 from HubSpot/feature/upversion

up version v3

Fixed Files API

Merge pull request #339 from HubSpot/upVersion

Up version v2.0.7

V3 Major release (Has breaking changes)

Merge pull request #334 from HubSpot/feature/v3

Feature/v3

Bug fixing

Merge pull request #335 from HubSpot/feature/2.0.6

up versiuon

Minor Changes

Merge pull request #325 from HubSpot/feature/codereview

review Pages + test

Retry Middleware

Merge pull request #304 from HubSpot/bugfix/companiesContactsTests

rewrite companis + add sleep

Added Products and LineItems APIs

Merge pull request #288 from HubSpot/feature/updateReadme

update readme

v2.0.2: Merge pull request #284 from HubSpot/review/blogs

Review/blogs