Do not set the HOME variable in the installer

We really should not need to set HOME globally anymore because we set it
in Git Bash in /etc/profile, and in the Git wrappers for cmd.exe.

Setting HOME caused problems, in particular when we hardcoded it to
the administrator's HOME if Git was installed using the administrator's
account.

This closes msysgit/git#119.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Merge pull request #166 from msysgit/homeless

Do not set the HOME variable in the installer
Update release notes in preparation for 1.9.0

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Installer: Update Inno Setup to version 5.5.4 (Unicode)
Merge pull request #167 from n8felton/innosetup5.5.4

Installer: Update Inno Setup to version 5.5.4 (Unicode)
Update the submodules in preparation for 1.9.0

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Git for Windows 1.9.0-preview20140217
Allow for custom settings to be saved to the INF file set by the /SAVEINF argument.

Resolves #165
Merge branch 'issue165'