Would be better to document that "patch" needs to be on execution path for building on windows

[INFO] ODL :: genius :: fcapsapplication .................. SUCCESS [ 0.863 s]
[INFO] ODL :: genius :: resourcemanager-aggregator ........ SUCCESS [ 0.839 s]
[INFO] ODL :: genius :: genius-karaf4 ..................... FAILURE [34:46 min]
[INFO] ODL :: genius :: genius-it ......................... SKIPPED
[INFO] genius ............................................. SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 45:54 min
[INFO] Finished at: 2017-06-13T05:42:08+05:30
[INFO] Final Memory: 362M/927M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-antrun-plugin:1.8:run (patch-karaf-scripts) on project genius-karaf4: An Ant BuildException has occured: java.io.IOException: Cannot run progra
m "patch" (in directory "C:\Users\efaseel\odl_boron\genius\karaf4"): CreateProcess error=2, The system cannot find the file specified
[ERROR] around Ant part ...<patch patchfile="C:\Users\efaseel\odl_boron\genius\karaf4\target/assembly/patches/karaf-instance.patch" originalfile="C:\Users\efaseel\odl_boron\genius\karaf4\target/assembly/bi
n/instance" failonerror="true"/>... @ 5:213 in C:\Users\efaseel\odl_boron\genius\karaf4\target\antrun\build-main.xml
[ERROR] -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException
[ERROR]
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR] mvn <goals> -rf :genius-karaf4