android: used fixed name temp dir and delete upon entry as we cannot control the exit.
pcjr: search in local path and in info/ for TERM program
convert: use run or load arguments if input file not specified
DRAW: allow e.g. TA-=C;
don't leave one-pixel gaps in circle/ellipse sectors from 0 to 2pi
pasting text: replace \n and \r\n with \r
android: redraw screen on keyboard toggle
allow max 2 pages for pcjr/tandy but require video memory to have been set big enough
added hercules, olivetti presets to PCBASIC.INI
update README
pcjr: don't give an error if moving from a high page into a screen that doesn't support that page; set to 0 instead.
Merge branch 'fix_erroneous_detached_head_commit'
pcjr: start in 40-column mode
adjust greeting to look better on 40-column text
pcjr/tandy: implement BEEP ON, BEEP OFF syntax
pcjr/tandy: document BEEP ON|OFF syntax