Fix some memory leaks in unedat.cpp.
Fix variable typos in unedat.cpp
Also fixed possible uninitialized variable usage. Initializes length to zero.
cellSaveData* (cellSysutil) improvements

* cellSaveData improvements: cellSaveDataListLoad2 should work perfectly
(ignoring the fact that there is no dialog, and the first entry is
chosen automatically). cellSaveDataListSave2 has improved too. Some code
refactoring is required though.
* Reverted (deleted) Emu/SysCalls/Dialogs/ folder which I accidentally
included while merging Nekotekina's branch (including minor SaveData
changes).
* Modified some small things in cellGcmSys.
Merge pull request #147 from lioncash/mem-leaks

Fix some memleaks in unedat.cpp
Merge pull request #153 from Bigpet/wxString_exorcism

wxString exorcism
correct some merge error that happened from automatic git merging
remove some wxString references I missed