be free of path separator
gently shebang
Fixed lib path.
be free of path separator
Replaced shebang

replaced from #!/usr/bin/perl to #perl
Added new method 'throw'.

'throw' method execute 'die'.
Support 'enblder install [target] [version]'.
Replaced from die or croak to throw.
Removed unused module.
Fixed check for already installed target.
0.7037