Fall back on the default help text file.
fix compilation with Clang/LLVM, and compilation on FreeBSD (and other BSDs, supposedly) and big-endian platforms

    (these got broken some time ago)
silence a compiler warning
fix some undefinedish behavior
Merge branch 'console'
Send full team info to a client who's just joined a team (missing info fix).

Problems have been observed with a lack of info about any given team-mate
until some relevant state is changed. Change is to set the last-sent time
for the client to just prior to the level start time.
refactor consoleState contained geometrykeeping and prepare for removal of mixed virtual/pixel unit handling
refactor cvar checking out of check_resize and cleanly separate some stuff into Con_UpdateConsoleState; let it be rerun after failing cvar validations
make the height part of the consolestate, move its calculation also into Con_UpdateConsoleState and take the borderwidth into account
allow for filled rects to be drawn adjusted or unadjusted
allow for 1px borders and remove most mixing of virtual and px unit usages (scrollbar drawing remaining currently)