Refactored, improved and optimized build script

Most changes:
- cleaned the script and configuration
- made all build files to by synchronized to the original ones
- made it more stable
- optimized speed - on my laptop it became 2.5x faster - from 27s before to 11s after the changes
- didn't change the generated file locations, so that other scripts (and local dev environments) do not need to be changed

The much more detailed descriptions are in the commits.

Please, run the script on Linux and try to build Phalcon from `safe` and one of optimized directories (`32bits` or `64bits`). While I verified it on my Windows, it needs to be checked under Linux as well.