We're ensuring at least one item is in $_ENV, but we are not resetting
its state. As such, the comparison should be that it has at least 1
item, not exactly 1.

- Prior to PHP 7, you could specify the same name for multiple arguments; PHP 7
  makes this a fatal error. The "feature" was used in several tests where 2 or
  more arguments from a data provider were not being used. Updated these to use
  discrete names for each argument.

Prior to PHP 7, an E_ERROR was returned when trying to instantiate a
class but omitting required arguments; with PHP 7, this is now an
E_RECOVERABLE_ERROR. As such, trapping such errors intentionally
requires an error handler.

Both calling an undefined instance method as well as undefined static method now
raise an E_ERROR (instead of an E_RECOVERABLE_ERROR), which means shutdown
functions cannot be called... nor can the tests be executed.

when used as parameters to various `image*()` functions

Ensure the data being written is a string before attempting to write it.

Also, `usleep()` requires an integer; change made to allow Filesystem storage
tests to pass.

Even though the ob_implicit_flush docs use the boolean constants, it actually
expects an integer, either 0 or 1. Because PHP.

dba_replace expects string data.

Oddly, there was a cast version of the value already; it just wasn't being used
in strtr().

Error that the test was trapping has been converted to an E_FATAL starting in
PHP 7.

- Instead of relying on PHP errors, as invalid types raise E_FATAL

…tring value

- Used semantic operator for all deps.
- Added composer.lock to repo, to speed up builds.

"int" is a reserved keyword starting in PHP 7. This patch changes the
class name to `ToInt`. A later patch will provide the original class,
but have it extend the new one.

Re-adds the `Int` filter for backwards compatibility. The new version
extends `ToInt`, but raises an `E_USER_DEPRECATED` in the constructor,
instructing users to use the new filter.

PHP 7 reserves "int" as a keyword, necessitating a change in the class
name; a later commit will re-add the original class, with a deprecation
notice.

This patch re-adds the `Int` validator to retain backwards compatility. It
extends the `IsInt` validator, raising an `E_USER_DEPRECATED` error
during instantiation.

PHP 7 marks "float" as a reserved keyword; this patch renames the
`Float` validator to `IsFloat` for forward compatibility. A later patch
will re-add the original class with a deprecation notice in the
constructor.

This patch re-adds the `Float` validator for backwards compatibility. It
extends the `IsFloat` validator and raises an `E_USER_DEPRECATED` notice
during instantiation to warn users to migrate.

PHP 7 reserves "float" as a keyword; this patch renames the class to
`Floating`. A later patch will reintroduce the original class for
backwards compatibility, and raise a deprecation notice.

Re-added the Float DDL column class to retain BC; it now raises an
`E_USER_DEPRECATED` notice on instantiation to warn users to migrate.

"string" is now a reserved keyword in PHP 7, so the class must be
renamed. Updated `AbstractValue` to use the new class name in all
instances, ensuring that both the Server and Client will continue to
work seamlessly.

- Range element uses a float validator internally; updated it to use `IsFloat`
- A number of tests and test assets used the `Float` validator; since they do
  not use the plugin manager, these were updated to use `IsFloat` instead.

- Unused use
- whitespacey lines

`object` will be a reserved word in PHP 7, and, as such, we cannot use it as an
annotation class name. `Instance` was chosen, and `Object` has been altered to
extend `Instance` and emit an `E_USER_DEPRECATED` notice on instantiation.

`null` will be a reserved keyword in PHP 7; this patch renames the `Null` log
writer to `Noop` (as it performs a no-op). A later patch will re-define the
`Null` writer to extend `Noop` and emit a deprecation notice.

This patch reinstates the Null log writer for BC purposes. It extends
Noop, and emits an `E_USER_DEPRECATED` notice on instantiation.

`null` will be a reserved keyword in PHP 7. This patch renames the `Null` filter
to `ToNull`, and ensures the filter plugin manager will use the new class. A
future patch will reinstate the `Null` filter with an `E_USER_DEPRECATED`
notice.

Re-added the Null filter for BC purposes; it now emits an `E_USER_DEPRECATED`
notice on instantiation, warning the user to migrate.

`null` will be a reserved keyword in PHP 7. This patch renames the
`Null` pagination adapter to `NullFill` (which describes better what it
does). A future patch will reinstate the original, but emit an
`E_USER_DEPRECATED` notice.

This patch re-adds the `Null` pagination adapter for BC. It now emits an
`E_USER_DEPRECATED` notice on instantiation.

`null` will be a reserved keyword in PHP 7. This patch renames the `Null` mail
transport to `InMemory`, and updates the factory to return an `InMemory`
instance whenever `null` is retrieved. A future patch will re-add the `Null`
transport with an `E_USER_DEPRECATION` notice.

This patch re-adds the `Null` mail transport to keep BC. The class
extends `InMemory` and raises an `E_USER_DEPRECATED` on instantiation.

Added aliases for "null" and "Zend\Paginator\Adapter\Null" that point to
"nullfill", and defined that as an invokable class pointing at
`Zend\Paginator\Adapter\NullFill`.

instead of `Null` filter, to ensure tests work going forward.

Also fixed the deprecation notice in the `null` filter to point to the
appropriate replacement class.