Switch to side-by-side view

--- a/.hgignore
+++ b/.hgignore
@@ -90,7 +90,6 @@
 src/qtgui/qrc_recoll.cpp
 src/qtgui/recoll
 src/qtgui/recoll.app
-src/qtgui/recoll.pro
 src/query/alldeps
 src/query/recollq
 src/sampleconf/rclmon.sh