Update html.php

I replaced the function "function_exists" to "method_exists" in the line 29.
Update html.php

I removed the function line commented.
Fix couple of typos found in some controllers
Some typos in template part
#4 Undefined variable Notice
#14 First Error (Strict) Install
Update README.md
Merge pull request #19 from xillibit/patch-5

#14 First Error (Strict) Install
Merge pull request #17 from xillibit/patch-3

Some typos in template part - Thanks!
Merge pull request #15 from xillibit/patch

Wrong html in adminport/default.php - Thanks!
Merge pull request #12 from plarra/patch-1

Update html.php - Thanks!
Merge pull request #16 from xillibit/patch-2

Fix couple of typos found in some controllers - Thanks!
Merge pull request #18 from xillibit/patch-4

#4 Undefined variable Notice - Thanks!
Fix wrong case for method="POST" in all views