Merge pull request #115 from NormanDunbar/master

Parser rule for SEND_BUF_SIZE was missing an INT. Added.
Fixed NPE during error recovery.

As indicated in https://github.com/antlr/grammars-v4/issues/113 the custom code responsible for token creation causes a NPE to be thrown when the parser tries to recover from errors.

This change contains two fixes:

1. custom created tokens now also get start- and stop-indexes, channel, etc.
2. original indentation spaces and line break chars are kept in the custom created token
Merge pull request #116 from bkiers/patch-1

Fixed NPE during error recovery.
Adding VB6 grammar by Ulrich Wolffgang
#118 fix the gradle script
Merge pull request #119 from liyuankui/master

fix #118; the gradle script
refs #120 fix flaw of grammar, added a test case
refs #122 create less grammar
Merge pull request #123 from liyuankui/less

refs #122 create less grammar
Merge pull request #121 from liyuankui/ticket-120

refs #120 fix flaw of grammar, added a test case