Bump version to 0.3.10.

Update changelog.
Change most of qDebug() meant to be errors to qWarning().

windows/qcma.nsi

@@ -10,7 +10,7 @@
 !define PRODUCT_EXE_NAME "qcma.exe"
 !define PRODUCT_VERSION_MAJOR 0
 !define PRODUCT_VERSION_MINOR 3
-!define PRODUCT_VERSION_BUILD 9
+!define PRODUCT_VERSION_BUILD 10
 !define PRODUCT_PUBLISHER "codestation"
 !define PRODUCT_WEB_SITE "https://github.com/codestation/qcma"
 !define HELPURL "https://github.com/xiannox/qcma/wiki"