update C++ standard (c++11 -> c++14)

- temporarily disable snapdragon builds until toolchain is updated

.ycm_extra_conf.py

@@ -51,8 +51,8 @@ flags = [
 # headers will be compiled as C headers. You don't want that so ALWAYS specify
 # a "-std=<something>".
 # For a C project, you would set this to something like 'c99' instead of
-# 'c++11'.
-'-std=c++11',
+# 'c++14'.
+'-std=c++14',
 # ...and the same thing goes for the magic -x option which specifies the
 # language that the files to be compiled are written in. This is mostly
 # relevant for c++ headers.