[PUSHED][PATCH] Get rid of size() == 0 (1)

[Ivan Timofeev]

On 19.02.2012 16:01, Elton Chung wrote:
> This patch converts some size() == 0 usage to empty() for performance reasons.

Pushed partially...

I dropped changes in sc/qa/unit/ucalc.cxx - there are no appropriate 
empty() function; and in soltools/giparser/st_gilrw.cxx - but luckily 
this stuff was unused and I removed it.

Thanks for the patch!

Ivan