Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
fixed detection of windows cross tools if burp-cross-tools is a symlink

also created a build target for creating the cross tools symlinks,
otherwise the test -e for gcc fails on the first run (did not bother
to check why)
Merge remote-tracking branch 'upstream/master'
Merge pull request #136 from ZungBang/master

fixed detection of windows cross tools if burp-cross-tools is a symlink