Gradually upgrade to PHP 7.0

[veewee]

Follow up issue of #434.

These steps should be done in separate - easy to review - PRs.

• Inject strict parameters in functions
• Inject strict return types in functions
• Remove unnecesary docblocks
• Declare strict types
• Upgrade configuration

[Landerstraeten]

7.0 or 7.1 ?

[veewee]

Lets start with adopting the new 7.0 options. ;)

[veewee]

@Landerstraeten Any updates on this? Does the grumpy-seventies branch works for you?

[richardhughes]

Hey @veewee, How is this progressing? If you need a hand, I'll be happy to help

[veewee]

Hi @richardhughes,

The gurmpy-seventies branch is existing for a while now. You can use that one and create pull requests against that branch if you find any issues. I am planning to do a test session with @Landerstraeten at the end of the month and merge it in once it works good enough.