Downloading very long fics result in segfault

[Paranoid-Dev]

Because of max char array size in C, downloading very long fics causes segmentation fault.
Should change the code to not store the entire chapter/story in 1 char array.

[Paranoid-Dev]

or malloc static char it

[Paranoid-Dev]

Partial unsatisfying fix with static char buf[10000000];
Will change it to malloc in next update