Add var renaming in webui and fix various bugs

Functions are now analyzed with anal.hasnext=false;aa;ac on webui load
Fix old webui disasm view where links stopped working
Show function vars and arguments in webui
Modified pdj so that it applies varsub if enabled
Fixed bug in disasm.c so that varsub respect ds->show_color
Local vars and args are now clickable and renamable in webui
Set e asm.lineswidth = 20 for old webui
Added workaround in r_parse_varsub so that varsub works in capstone when delta in < 10