FELIX-1368 move cache dir out from build to prevent clean destroying it


git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@796836 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/sigil/bldcommon/build.properties b/sigil/bldcommon/build.properties
index be1f6bc..8c9b43e 100644
--- a/sigil/bldcommon/build.properties
+++ b/sigil/bldcommon/build.properties
@@ -22,8 +22,8 @@
 top-build.dir	= ${common.dir}/../build
 dist.dir	= ${top-build.dir}/dist
 install.dir	= ${top-build.dir}/install
-cache.dir	= ${top-build.dir}/ivy-cache
 repository.dir	= ${top-build.dir}/repository
+cache.dir	= ${common.dir}/../cache
 # note: clean-local task assumes repository.pattern starts with ${ivy.module}
 repository.pattern = [module]/[revision]/[type]s/[artifact].[ext]