* Removed ToJSVal<jsval> because it's treated as ToJSVal<long> and
causes minor confusion and/or compiler errors.
Changed script interface functions to return either C++ types or a
jsval_t wrapper.
* Replaced some C casts with static_cast to avoid significant confusion
and to cause compiler errors instead.
* Removed some redundant argument-checking code. Simplified some
string-generating code.
* Fixed some "dereferencing type-punned pointer will break
strict-aliasing rules" warnings (from `g++ -O3`).
This was SVN commit r5115.
- add convenience macros for config_db(CFG_GET_SYS_VAL)
- VFSUtil::EnumDirEnts now uses flags instead of bool recursive
- UNUSED() for params, UNUSED2 (<- need better name) for variables
- config.h defines must be tested with #if (always defined) -> allows
detecting misspellings thanks to compiler warnings
- replace debug_assert(0) with debug_warn (its sole purpose)
- replace ScriptingHost::ValueToInt et al with ToPrimitive
- use nommgr.h to disable both mmgr and VC debug heap
This was SVN commit r2585.
