[REVIEW-3-5] Fix some apparent misuses of RTL_CONSTASCII_USTRINGPARAM

[Stephan Bergmann]

The attached 
core-0001-Fix-some-apparent-misuses-of-RTL_CONSTASCII_USTRINGP.patch and 
binfilter-0001-Fix-some-apparent-misuses-of-RTL_CONSTASCII_USTRINGP.patch extract 
those parts of the master commits 
9ab0b38e95133dab720408cc2c80093b8a201c10 and 
715ac8c1b402e33930317a69bbdd61ad88133740 (core) and 
b0035dae18266c4fd219b29dbc635497c0fa53ec (binfilter) that address 
apparent misuses of RTL_CONSTASCII_USTRINGPARAM instead of 
RTL_CONSTASCII_STRINGPARAM, to be reviewed and cherry-picked to 
libreoffice-3-5.

All those misuses were introduced with commits from August and November 
of last year and do not affect LO 3.4.  How severe these errors are in 
practice, and whether they are responsible for any actual bug reports, I 
do not know.

Thanks,
Stephan