Apparently the ::unrealize symbol is sent too late, after we destroyed
the widget and freed the GeanyDocument, and some signals like
::focus-in-event can still be fired on the widget after that.

So, properly use the ::destroy signal that is supposed to be fired when
others should release references to that instance.

Properly skip parentheses around an rvalue, and then properly recognize
the surrounded value.  This allows to properly recognize e.g. rvalue
`({...})` as an object, or `(function(){})` as a function.  As the
implementation is tolerant regarding garbage after the statement,
function expressions called straight away (`(function(){})()`) are
implicitly supported.

This however removes support for the following invalid JavaScript
syntax that was previously supported as a function/method declaration:

	var func = () {}

This syntax is not present in the ECMA standard nor is supported by
popular JavaScript engines.

See:
 * http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-262.pdf
   section 13, "Function Definition"
 * http://ecma262-5.com/ELS5_HTML.htm#Section_13
 * https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Functions_and_function_scope#Defining_functions

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.