Bug 572890: Define installation directory relative to launcher

Add support for "@launcher.dir" symbol for the -install paramter. This
will replace @launcher.dir with the path to the launcher and thus allow
the installation tree to be moved as long as the sub-tree relation stays
constant.

Contributed by STMicroelectronics

Change-Id: I02dbd35b4078779eba62ed64fd39a2b67bc9f302
Signed-off-by: Torbjörn Svensson <torbjorn.svensson@st.com>
Reviewed-on: https://git.eclipse.org/r/c/equinox/rt.equinox.framework/+/179406
Tested-by: Thomas Watson <tjwatson@us.ibm.com>
Reviewed-by: Thomas Watson <tjwatson@us.ibm.com>
3 files changed