Added .mov (quicktime) to builtin_mimes_types

Lua functionality change: print renamed to mg.write, read renamed to mg.read. Expanded user manual, fixed example pages.

lsp_mg_read: remove dead code, return nil on empty read

Fix parameter 1 for select in poll()

_CRT_SECURE_NO_WARNINGS should not generate a warning if already defined

	modified:   mongoose.c

Environment variable required for PHP cgi

In few windows machines, the environment variables "ProgramFiles" is required to successfully execute PHP code especially socket functions.