Spend your money yo, if you are going to go gasless for so long you definitely should take a fast 3rd. You were doing well building drones (too many almost) but you didn't have the infrastructure to spend what you were mining. Roaches don't get anything from +1 melee ;p. You engaged at a really bad angle and more than half your stuff wasn't attacking, you should have ran away. Use overlords to scout and put them around the map where it might send his dropships, and to know when he takes his third.
Again, spend your money. In ZvP (and ZvT a lot of the time) you should get another pair of Queens as soon as the first 2 are done to start creep spread, this would have helped a lot against the Mothership Core. Your problem with the Zealots was getting supply blocked at 28 you probably would have been ahead if that didn't happen, although I think you still had unspent larva while sitting on 500+ minerals after you built 4 overlords. Remember 4szzzzzzzzzz when fighting. First 100 gas goes on Zergling Speed. You overdroned on 2 bases again lol, normally it's the other way round in bronze, you should have 16 on minerals at each base to have it saturated. This is particularly dangerous when you don't know what your opponent is doing so spread the overlords out more again and run in with a couple of lings every now and then. You were researching +1 melee when you had loads of Roaches again lol
Alright the late gases will not work in ZvZ. You need Speed and Baneling Nest right away. Get gas a drone or 2 after your pool. Remember to transfer drones, at one point you had 24 on your main and none on your natural which is a loss of income for you. This was pretty much a build order loss, although you did a fair bit with the Roaches you had a big bank again (this is bad) and you can't transition to Mutalisks after him effectively because he will win every fight as his Muta count will be higher. He did the standard ZvZ build but didn't attack early with lings, if he did he probably would have done a lot of damage then.
Also you got the melee upgrade again when you had Roaches and Hydras
Will watch some more.
I recommend reading this for build orders
http://www.teamliquid.net/forum/viewmessage.php?topic_id=402758