Use own exception logging method instead of an external one

Signed-off-by: Anton Kolesov <Anton.Kolesov@synopsys.com>
Make plugin allocate console by default

We disabled it initially so that user will not be confused by the red
harmless output in the stderr, however it also made rather uneasy to handle
situations where there is a problem - user has to know how to enable console
to see its output.

Signed-off-by: Anton Kolesov <Anton.Kolesov@synopsys.com>
Make text field name more clear

Signed-off-by: Anton Kolesov <Anton.Kolesov@synopsys.com>
Fix UI view inconsistency

Ensure that two "Browse" buttons has same width.

Signed-off-by: Anton Kolesov <Anton.Kolesov@synopsys.com>