Previously the application was restarted from the main install process, which may have
been elevated. The main application must be started from a non-elevated updater/updater.exe
process otherwise the main app will inherit the elevated status from its parent.
* Modify ProcessUtils::runElevated() to return the status code of the process
* Change UpdateInstaller to run the main installation synchronously from the initial
updater process in the case where elevation is not required.
* Remove calls in main.cpp to relaunch the main application after the UI is closed.
* Add WIN32 flag to add_executable() so that cmake generates a GUI application
* Add WinMain() entry point which converts the unicode command line arguments to ANSI and then calls the standard main() entry point.
The unit test continues to pass although I am not sure whether
converting command-line args from Unicode to ANSI will cause problems
with filenames passed on the command-line that contain non-ANSI
characters.
* Fix ProcessUtils::runAsyncUnix() not returning a value
* Fix UpdateDialogGtk::updateRetryCancel() not returning a value
* Add missing includes in TestUpdaterOptions.cpp
* Fix unsigned/signed int comparisons
* Set the --wait argument when launching new updater processes with the ID of the process to wait for.
* Add ProcessUtils::currentProcessId() utility method and PLATFORM_PID define
* Add FileOps::fileName() to get the base name for a file
* Add ProcessUtils::runSync() to run a process, wait for it to exit and then
return the status code from that process.
* Change ProcessUtils::runAsyncUnix() to use execvp() in order to search PATH
for the specified binary if the filename is not absolute.
* Add ProcessUtils::currentProcessPath() to get the path to the current application
and add a Linux implementation.
* Implement ProcessUtils::runAsync() on Unix using fork/execve.
* Setup updater to run the main installation phase with the correct arguments.
* Add '.zip' to the package name to get the path of the package file.
