[PATCH] Automated creation of REVISION file in Eclipse

[jpstotz]

JOSM depends more and more on the REVISION file which is only created using the ant build target.
If using Eclipse as development and compilation environment the REVSION file is not created and therefore JOSM always complains about the UNKNOWN version info.

The following patch add a target to the build.xml and adds it as ant build target which is automatically executed if Eclipse builds the project.
The created REVISION file is directly written to the bin folder of the JOSM project and therefore present when JOSM is executed from within Eclipse.

[jttt]

(In [2453]) Applied #3899 - patch by jpstotz - Automated creation of REVISION file in Eclipse