Update mikey179/vfsStream requirement to 1.6.*

[Dillon-Brown]

Updates the requirements on mikey179/vfsStream to permit the latest version.

Release notes

Sourced from mikey179/vfsStream's releases.

vfsStream 1.6.5

• fixed #157 seeking before beginning of file should fail, reported and fixed by merijnvdk
• structure array in vfsStream::create() and vfsStream::setup() now can contain instances of org\bovigo\vfs\content\FileContent and org\bovigo\vfs\vfsStreamFile, patch provided by Joshua Smith (jsmitty12)

Changelog

Sourced from mikey179/vfsStream's changelog.

1.6.5 (2017-08-01)

• fixed #157 seeking before beginning of file should fail, reported and fixed by merijnvdk
• structure array in vfsStream::create() and vfsStream::setup() now can contain instances of org\bovigo\vfs\content\FileContent and org\bovigo\vfs\vfsStreamFile, patch provided by Joshua Smith (jsmitty12)

1.6.4 (2016-07-18)

• fixed #134 type safe directory names, reported and fixed by Sebastian Hopfe

1.6.3 (2016-04-09)

• fixed #131 recursive mkdir() fails if the last dirname is '0'

1.6.2 (2016-01-13)

• fixed #128 duplicate "valid" files/directories and incorrect file names

1.6.1 (2015-12-04)

• vfsStream::url() didn't urlencode single path parts while vfsStream::path() did urldecode them
• fixed #120, #122: create directory with trailing slash results in "Uninitialized string offset: 0"

1.6.0 (2015-10-06)

• added vfsStreamWrapper::unregister(), provided by malkusch with #114
• fixed #115: incorrect handling of .. in root directory on PHP 5.5, fix provided by acoulton with #116

1.5.0 (2015-03-29)

• implemented #91: vfsStream::copyFromFileSystem() should create large file instances
• implemented #92: vfsStream::copyFromFileSystem() should respect block devices
• fixed #107: touch() does not respect file permissions
• fixed #105: vfs directory structure is not reset after each test
• fixed #104: vfsStream can't handle url encoded pathes

1.4.0 (2014-09-14)

... (truncated)

Commits

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