Version 1.3.0.0 released

* Link against wxWidgets 3.0
* SSE2 compatible CPUs are required (xerces-c++)
* Use the same default encoding to read and write files (Bug #234)
* Only show SSE2 warning in debug build
* Bug #228 Misleading translation when file was changed externally, may lead to data loss
* Bug #227 Dead Link: Help > Forum
* Bug #221 Patch for building with C++11 (Roger Leigh)
+ Added Mac port
* Update the iconized frame window when opening files from the command line
* Fix supporting for filenames with non-ASCII characters
+ Feature #171 Fold element does not fold following whitespace
+ Feature #170 I did a small patch that allows SPACE to trigger autocompletion on any space (Thanassis Tsiodras)