PS1: fix annotations

In 4e4e3f3, the 0; and bell etc. were incorrectly interpreted as having
to do with colors. In fact, it is responsible for setting the window
title. [1]

[1] http://www.faqs.org/docs/Linux-mini/Xterm-Title.html#ss3.1

Signed-off-by: Tay Ray Chuan <rctay89@gmail.com>
Merge commit '759a59f67bfcb7cf1fb11f289d04398eb78de908' into ps1-title

In effect, this reverts the change of the escape sequence from

  \033]0;

to

  \033[0m

due to an incorrect understanding of their purposes in 4e4e3f3.

Conflicts:
	etc/profile
Merge commit '0433db08af3db8454dd90cb416060dae2fe64716' into ps1-title

In effect, this reverts 0433db08af3db8454dd90cb416060dae2fe64716, since
its motivation (beep, double-display of pwd) is no longer present.

Conflicts:
	etc/profile
Installer: Use a more appropriate name for a PuTTY helper function

Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
Installer: Allow to browse for any Plink executable

Instead of limiting the accepted Plink location to a directory with
certain executables, allow any executable that has "plink" in its name.

Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
Installer: Prefer custom GIT_SSH over previous data for Plink

In case the user has modified GIT_SSH manually after the last
installation, prefer that path over the one from the previous
installation for the Plink location in case it points to a valid
Plink executable.

Signed-off-by: Sebastian Schuberth <sschuberth@gmail.com>
Merge remote-tracking branch 'rctay/ps1-title'
Updated to Git v1.8.3

Signed-off-by: Pat Thoyts <patthoyts@users.sourceforge.net>