Fixed docset installation. Addressing #407, #408, #409 and #412.

The problem was due to template files copy step issued for each output generator. This code basically deletes output path and copies template files over. However in doing so after docset was already prepared, it invalidated all previous effort.

PS Don't worry about the number of addressed issues - these are (likely) pointing to the same problem!
Increased build number to differentiate last fix for #407, #408, #409 and #412.
Fixed docset publish default values case. Addressing #409 and #412.

This commit makes docsetutil tool compile the xar file, however I did not test the results. Plus the code may potentially introduce Dash compatibility issues added with commit 75a390768c9b.
fixed params error

when i run script:
“sudo ./install-appledoc.sh -b /usr/bin -t ~/Library/Application\ Support/appledoc/ “

an error occurred.
“install-appledoc.sh: line 32: [: too many arguments”
Merge pull request #413 from squarezw/master

Fixed parameter parsing error for command-line options with space
Verbose setting in default AppledocSettings.plist is now string not number. Closes $389 and references #414.
Ignore if enum is already defined.
Print warning instead of silently ignoring the issue.
Merge pull request #387 from steipete/master

Fixes exception crash if enum is defined more than once.
Allows single-line comments spanning multiple lines to be grouped if they have the same indentation.
Merge pull request #421 from idpaterson/pull-requests/indented-single-line-comment-grouping

Grouping for indented single line comments
Verbose setting in default AppledocSettings.plist is now string not number. Closes $389 and references #414.
Fixed `--merge-category-comment` option. Closes #422.
Merge branch 'master' of github.com:tomaz/appledoc