Cause whatcomp output to use the incoming epocroot value. i.e. if epocroot is relative then so is the what output. e.g. if EPOCROOT=\ then the output will be of the form "\epoc32\release\armv5\...." If it's "..\myepocroot" then the output will be "..\myepocroot\epoc32\release\armv5". If it's absolute then the what output will also be absolute.

// <branchInfo originator="prozeniu" error="wiki-07wk24-311" since="07-06-14" category="fix">
// We need TwistOpen and TwistClose to cause display to change between
// landscape and portrait, but SysAp is consuming the key events.  Try
// treating them as Flip events are handled already by SysAp.
// </branchInfo>
// BRANCH 07-06-14