Yothalot-PHP 2.7.0

• Added support for limiting record count in mapper tasks
• Add option to set the split size for mapper input files and check whether the the maximum number of bytes is a multiple of this split size
• Reworked error objects to extend from the regular result objects
• Pass exception from missing mount point on to PHP userspace
• Added Input\seek() method
• Updated extension to new PHP-CPP api
• Fixed the makefile for newer PHP versions
• Removed dependency on React CPP