Removed unused arguments.

Removed unused variables.

Travis has added PHP 7 nightly support, so adding it as a build target.

Merge branch 'master' into phpseven

* master:
Added constant for RGBA channels. Some functions don't work correctly with CHANNEL_DEFAULT and having to write `\Imagick::CHANNEL_RED | \I

Merge branch 'master' into phpseven

* master:
Added constant for RGBA channels. Some functions don't work correctly with CHANNEL_DEFAULT and having to write `\Imagick::CHANNEL_RED | \Imagick::CHANNEL_GREEN | \Imagick::CHANNEL_BLUE |\Imagick::CHANNEL_ALPHA` is tedious.

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Added constant for RGBA channels. Some functions don't work correctly with CHANNEL_DEFAULT and having to write `\Imagick::CHANNEL_RED | \Imagick::CHANNEL_GREEN | \Imagick::CHANNEL_BLUE |\Imagick::CHA

Added constant for RGBA channels. Some functions don't work correctly with CHANNEL_DEFAULT and having to write `\Imagick::CHANNEL_RED | \Imagick::CHANNEL_GREEN | \Imagick::CHANNEL_BLUE |\Imagick::CHANNEL_ALPHA` is tedious.

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Removed hard coded CFLAGS. Fixed progressMonitor not working in "7".

Enabled -Wall and fixed various small issues. Added test for progress monitor via callback, which is broken in 7.

Merge branch 'master' into phpseven

* master:
Fixed kernel debug info.

Fixed kernel debug info.

Use correct free and offset handlers for PHP "7".

Merge branch 'master' into phpseven

* master:
Fixed parameter parsing. This is actually a 1bit difference.
Moved setting CFLAGS out of travis script, to allow it to be more flexi

Merge branch 'master' into phpseven

* master:
Fixed parameter parsing. This is actually a 1bit difference.
Moved setting CFLAGS out of travis script, to allow it to be more flexible and not forced onto a single line.
Added PHP5.6 - only use strict compile options for 5.6
Enabled CFLAGS="-Wno-deprecated-declarations -Wdeclaration-after-statement -Werror" to prevent C89 errors.

Conflicts:
imagick.c
imagick_class.c
imagickkernel_class.c

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Fixed parameter parsing. This is actually a 1bit difference.

Moved setting CFLAGS out of travis script, to allow it to be more flexible and not forced onto a single line.

Added PHP5.6 - only use strict compile options for 5.6

Enabled CFLAGS="-Wno-deprecated-declarations -Wdeclaration-after-statement -Werror" to prevent C89 errors.

Added -Wdeclaration-after-statement to CFLAGS for travis, to catch bad placement of variables. Fixed a bad placement of a variable.

Fixed regression.

Disable test for versions unavailable.

Fixed skip by version check.

skip test for earlier versions of ImageMagick

Listed skip probe for fourier functon availability to package list.

Fixed PHP7 regression.

Fixed incorrect iteration.

Merge branch 'master' into phpseven

* master:
Fixed issue with 'out of order' matrix e.g. "$foo[1] = 1; $foo[0] = 0;" is read out by zend_hash_move_forward as 1, 0.
Added ability

Merge branch 'master' into phpseven

* master:
Fixed issue with 'out of order' matrix e.g. "$foo[1] = 1; $foo[0] = 0;" is read out by zend_hash_move_forward as 1, 0.
Added ability to set origin as 'optional' second parameter for ImagickKernel::fromMatrix function.
Fixed wrong default channels.
Made function name be more consistent ImagickKernel::fromMatrix and Imagick::getMatrix rather than ::fromArray and ::getValues. Fixed unitialized memory access and set x and y values.

Conflicts:
imagickkernel_class.c

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Fixed issue with 'out of order' matrix e.g. "$foo[1] = 1; $foo[0] = 0;" is read out by zend_hash_move_forward as 1, 0.