Merge pull request #65 from Bigpet/master

Update Readme with some links to the wiki and forums
remove local copy of wxWidgets
add wxWidgets submodule
delete submodules again
add wxWidgets repository as a submodule
Directory-related functions implemented

* cellFsOpendir, cellFsReaddir, cellFsClosedir functions implemented.
* vfsDirBase: m_entryes, GetEntryes renamed to m_entries, GetEntries
respectively.
* vfsLocalDir: Read() function added to get the entries one by one.
* Moved IsExists() from vfsLocalDir to vfsDirBase to avoid "R6025 pure
virtual function call" error.
* Other minor changes in some functions of sys_fs
make it compilable, don't merge this, string logs are broken and paths absolute to my machine
merging vfs changes because I need to fix wxstring reads
prevent overflow becaus wxStrings aren't \0 terminated anymore
use relative paths again to include the wxWidgets stuff
use the unicode version of the regex lib, don't know why the releas config links against it while debug doesn't
use .wx_str() instead of .mb_str(), Dbg console is still broken
convert Dbg console packets uniformly to char*
remove commented out code
clean up more output conversions, everything that wants to get printed needs to be explicitly convertex to the wxCharType otherwise the VFormat prints nothing
Few module functions added

Implemented:
* cellSysutilApGetRequiredMemSize
* cellGameContentErrorDialog

Binded lv2 SysCall 814 to cellFsUnlink
add submodule instructions and bump submodule version
Merge pull request #66 from Bigpet/wxWidget3Port

wxWidgets3 port
change submodule to DHrpcs3