Enable 64-bit build on Linux & Mac
Add Windows 64-bit build to VS project files
Fix function name typo in enc test app
Remove redundant NULL check

Address of a pointer variable can never be NULL.
Make the two ParseCommandLine functions consistent

with respect to strcmp function call.
Removed unnecessary brackets.
Merge pull request #50 from varunbpatil/cleanup

Fix function name type and remove redundant NULL check
Merge pull request #48 from licaiguo/master

Add 64-bit build support for windows & Linux
Add 64bit builds to Travis
Merge pull request #51 from ethanhugg/travis1

Add 64bit builds to Travis
Improve handling of help switch in enc test app

welsenc.exe -h is now a valid command which returns success.

No longer prints help text twice in the case when the -h switch
is given along with a wrong cfg.
Merge pull request #53 from varunbpatil/cleanup

Improve handling of help switch in enc test app