PCManFM file searching support is coming!

[PCMan]

Hello,
I just added file searching capability to pcmanfm/libfm.
However it is very primitive and is not finished yet.
Some parts do not work and some UI needs polishing, too.
At least this is a good start. :-)

Source code is in 'search' branch of both pcmanfm and libfm.
Please try it.

BTW, the search branch of pcmanfm is done using git merge.
Andriy will hate this very much, but the merge was done before he
suggest using git rebase.
I don't know how to convert the merged result to use git rebase instead.
If someone knows how to do it, please help.

Thanks!