Strange indent even if not pasting

Hello,
Today I made config file for vim. Problem is, that when I try to write or paste, I has wrong indent. Example:
if(1/0==3){
I just opened new line by o. Now I will simply press enter (after writing this text)
And I am here, but I am supposed to have same indent on this line as on the previous one
now I press enter and I have same indent as the previous line
}
Problem is that the line 3 and 4 should same indent as line 2, but it's bigger.
my vimrc file if here: http://pastebin.com/7iAxLNiL
Thanks for all suggestions

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