changed scripts and reports at CORE.FILESTORAGE module:

* list.filestorage.php :  optimized scripts, new form design, advanced sort options, some cosmetic fixes
* getfile.php : (+) returns empty file if real file not found in filestorage directory. Increase download counter only for *real* downloads (excepts downloads from control panel)
* frontend.js : added parameter for function setHashBySelectors() - required class of search selector, default value is '.search_selector'
* filestorage.action.list.php : updated search scripts, updated output, some cosmetic fixes
* core.php : added precision (closeness) parameter for function ConvertToHumanBytes(), default value is 0.
* admin.html (tepmlate file) : removed button to default apache directory list handler (useless with new filestorage list interface)
changed scripts and reports at CORE.FILESTORAGE module:

* list.filestorage.php :  optimized scripts, new form design, advanced sort options, some cosmetic fixes
* getfile.php : (+) returns empty file if real file not found in filestorage directory. Increase download counter only for *real* downloads (excepts downloads from control panel)
* frontend.js : added parameter for function setHashBySelectors() - required class of search selector, default value is '.search_selector'
* filestorage.action.list.php : updated search scripts, updated output, some cosmetic fixes
* core.php : added precision (closeness) parameter for function ConvertToHumanBytes(), default value is 0.
* admin.html (tepmlate file) : removed button to default apache directory list handler (useless with new filestorage list interface)
Merge remote-tracking branch 'origin/master'