Just cleaning up last commit.

Mostly gets rid of re-drawing issues, however is not great.

Fix typo in documentation

This makes tm_get_current_tag() roughly 4.5 times faster.

This also makes recent GCC shut up about indexing below the bounds as
it detected the code checked for a negative index yet didn't guard the
actual access.  For now GCC doesn't understand the more comprehensive
check, but it might come back if GCC becomes smart enough.

Anyway, this makes the Assert() more correct, and addition of the
explicit kinds array size makes sure any future kind addition won't
miss its entry.

Add *.tpl and *.xtpl.

Rust now allows CRLF line endings in source files, which doesn't actually
change any lexing here but the comment was wrong.

Also, the hashbang initial comment has a special case where #![ doesn't count
as a comment (but instead an inner attribute that just happens to be on the
first line).

These were omitted by mistake. Caused bugs like '"' being interpreted as a
start/end of a string, '}' as the end of a block etc.

Previously, only the string contents were stored in lexerState::token_str (i.e.
not including the delimeters). Now, the delimeters are stored as well, thus
preserving them. This also simplifies the code a bit.

A new function is added to handle the character storage, which is also now
applied for normal identifiers. To that end, the MAX_STRING_LENGTH was boosted
to 256 so that all reasonably sized identifiers may fit.

Update Indonesian Translation

When quitting we avoid doing some unnecessary actions, and used to
simply destroy the Scintilla widget (and thus the notebook page)
instead of the elaborate UI updates.

Unfortunately, when the infobars landed they changed what is packed as
a notebook page, and now destroying the Scintilla widget alone is not
enough to close the page.  Fix this by properly removing the whole page
no matter what it contains.

This issue was visible when quitting Geany with a project open.

When the infobar gets closed/destroyed it tries to focus the possibly
destroyed document, leading to a crash.

Always bring back the selected item after an user action, so the user
can see what she's doing.

Move quit-related functions to main.c and make them static. main_quit() now
does all the heavy work and can be called from signal handlers.

Before infobar it didn't matter because the dialog was modal and interaction
with the doc was impossible. Now that you can interact it the doc should
be marked changed immediately.

It got lost by accident in 5117940f.

This allows overwriting the file right from the info bar.

This does not seem to happen automatically, at least on GTK3.

Use g_signal_connect_object() to establish automatic and race-free signal
disconnection instead of the hand-crafted mechanism.