Finish implementation with proxy functions
Fixing unused variable warnings

* Fixing unused variable warning. Generated code should compile
  with -Wall -Werror flags

* Fixing forgotten __Module -> SwigModule renaming
Updating documentation
Optimize metamethods inheritance resolving

* a table of metamethods that should be inherited is now stored in
  SWIG registry table. It optimizes memory usage.
Fix intgosize arg documentation

it was misnamed, and brackets were shown as plaintext lt; gt;

Closes #163
Another go html fix
Remove unused variable
Removed all unnecessary asserts
Fixed errors from previous commit.

Also in previous commit also fixed warning with unsigned vs signed
comparison
Merge pull request #160 from v-for-vandal/issue_157

Fixing unused variable warnings
Fix m4 quoting of checks for yodl2man and yodl2html versions
Fix comment typos
Fix missing ")" in code example
Merge pull request #159 from v-for-vandal/issue_154

Fixing issue 154
Fix typos