REUTERS – President Barack Obama will announce a series of executive fixes for the immigration system on Thursday, including several measures to help the technology sector deal with a web of complex rules for hiring foreign workers. The rule changes fall far short of what the industry says it needs, which would require action by Congress. The administration also rejected proposals made by tech companies that would speed up long wait lists for green cards, and recapture green cards that were issued but left unused for various technical reasons. Here are details about what will be proposed. …