Pretty printer: Preserve comments in arrays and calls

If call arguments or array contains comments, print it in multiline
form, so that comments may be preserved.

Fix links

Use the correct method from NodeVisitor interface (#373)

FAQ's code examples use incorrect method, so this update fixes it

Add FAQ with entries for parent and siblings

Remove XML serialization from docs

This is no longer available in version 4.

Tweak node insertion formatting

Removes unneeded code from JSON encoding example (#372)

Fix a typo in NodeDumper for REQUIRE_ONCE (#367)

Merge branch '3.x'

Release PHP-Parser 3.0.5

Run on Trusty Beta Container (#363)

This uses a more recent HHVM version.

Merge branch '3.x'

Conflicts:
lib/PhpParser/ParserAbstract.php
test/code/parser/errorHandling/recovery.test

Adjust the end attributes on the stack as well

Merge branch '3.x'

Conflicts:
lib/PhpParser/ParserAbstract.php
test/code/parser/errorHandling/recovery.test

Make Expr\Error nodes empty

Resolves issue #359.

Merge branch '3.x'

Conflicts:
lib/PhpParser/Parser/Php7.php

Fix start attribute assignment for Error in ClassConstFetch

Remove leftover code

Merge branch '3.x'

Perform NullableType resolution earlier

This makes sure function signatures are already fully resolved in
enterNode(). Resolves issue #360.

Drop XML serialization from php-parse

The class no longer exists, so this broke the script.

Remove unused variables (#357)

Merge branch '3.x'

Release PHP-Parser 3.0.4

Improve doc comments