Switch to side-by-side view

--- a/.hgignore
+++ b/.hgignore
@@ -62,7 +62,6 @@
 src/qt4gui/images
 src/qt4gui/preview.ui
 src/qt4gui/qrc_recoll.cpp
-src/qt4gui/rclmain.ui
 src/qt4gui/recoll
 src/qt4gui/recoll.pro
 src/qt4gui/sort.ui