Added kdev4 files to gitignore, as these alocal Kdevelop IDE files. Applied preg_replace regex fix for Bug 1934 ( https://suitecrm.com/forum/bug-tracker/1934-unable-to-return-chart-data-invalid-xml-for-file-cache-xml )
Bug-Fix in file ./include/SugarChart/JsCharts.php
replacing regex with an update version to fix a regression problem due to update in PHP 5.5.1
where PCRE Extension update ot 8.34 changes regex pattern.
This resulted in a compilation error whilst parsing files in /cache/xml/
see bug at:
https://suitecrm.com/forum/bug-tracker/1934-unable-to-return-chart-data-invalid-xml-for-file-cache-xml

Merge branch 'bug-fix-1934'
removed log
Merge branch 'ricktimmis-master' into hotfix-7.1.5
added missing .pdf extension on reports