[Ohrrpgce] SVN: teeemcee/10069 Replace broken titlescreen browser with backdrop ThingBrowser call

[subversion at HamsterRepublic.com]

teeemcee
2018-03-03 23:54:28 -0800 (Sat, 03 Mar 2018)
152
Replace broken titlescreen browser with backdrop ThingBrowser call

It was still reading the .mxs lump.
Also, mention in whatsnew that .mxs is obsolete.
---
U   wip/allmodex.bas
D   wip/ohrhelp/title_screen_browse.txt
U   wip/subs4.bas
U   wip/whatsnew.txt