Added DDS loader
Minor cleanup
Corrupted database checks--, some cleanups
Updated README, fixes ...

- updated README with normal map & DDS instructions
- condition for texture compression is changed to multiple-of-4-dimensions
- textures tagged as non-readable are not tried for compression or unloading
- fixed DDS unloading (DDS disabled currently)
- fixed texture RAM usage calculation, only freed system RAM reported
Fixed DDS loader, Util.logDownHierarchy()

- fixed alignment bug when loading of non-compressed-odd-width-24-bit DDS files
- added Util.logDownHierarchy(), #ifdef-ed
- updated female names REs
Added DDPF_NORMAL support