Fixed data base info retrieving through DBHelper, value(QString) should never be used because it is really slow. All items sorting should be done at db level or using std::sort.

dependencies/pdfium/macx/VERSION

@@ -0,0 +1,18 @@
+YACReader for macOS uses a precompiled single static library version of pdfium.
+
+pdfium branch used for building: chromium/3071 (current beta)
+
+build parameters used (gn args):
+
+pdf_enable_xfa = false
+pdf_enable_v8 = false
+pdf_is_complete_lib = true
+is_official_build = true
+symbol_level = 0
+ 
+Instructions on building pdfium can be found at https://pdfium.googlesource.com/pdfium
+
+It is recommended to always use the branch the current stable version of chromium uses.
+To get the pdfium branch corresponding to Chromium stable, look at 
+http://omahaproxy.appspot.com and search for the true_branch variable associated with
+the current stable dev channel of Chromium.