Turn on a bunch of warnings

Turn on as many warnings as easily possible from:
https://github.com/lefticus/cppbestpractices/blob/e73393f25a85f83fed7399d8b65cb117d00b2231/02-Use_the_Tools_Available.md#L100

Tested:
ipmitool sensor list still works

Change-Id: Ied8fa66de9fcd25e448f8048c4f8216b426b6f55
Signed-off-by: James Feist <james.feist@linux.intel.com>
diff --git a/src/ADCSensor.cpp b/src/ADCSensor.cpp
index c94f251..2141ac4 100644
--- a/src/ADCSensor.cpp
+++ b/src/ADCSensor.cpp
@@ -165,7 +165,7 @@
             }
             errCount = 0;
         }
-        catch (std::invalid_argument)
+        catch (std::invalid_argument&)
         {
             errCount++;
         }