Fixed several gulp script problems so that i will work out-of-box

The gulp script does not work out-of-box. I made the modifications below so that it would work out of box. The changes are tested with the ui-router option selected. 

## Problems found
1. html not defined in config
2. Modified JS config to include all JS files other than test-results
and bower files
3. added missing app.js to karma config
4. added code to app.js template so that $rootScope.$state and
$rootScope.$stateParams are set when ui-router are selected
5. Modified partial/index.js line 52 to remove '/' concat after this.dir. This was cause double slashes '//' for ui-routers. Not sure if it is the same for angualr-router. (will be testing later)
6. The template implementation was not working with karma. All script
references on index.html has to be valid when karma runs. However
test:unit only gets run under apps folder which does not utilized the
htmljs results. But at the same time both index.html and app.js
reference the templates module. This gives error running gulp default
task as well as running unit test on karma. Implemented comments <!—
template-holder —> , /** template-holder **/ on index.html and app.js
respectively. modified gulpfile.js to replace the comments with
templates module initialization code when running build:dist.

## Remaining Problem
I could not figure out why browswersync stops under the serve:dist task. The server stops as soon as test:unit is done with Karma. I have removed the build:dist dependency so i can at least serve it after i manually run build:dist. Sorry I am new to the javascript scene so i don't know enough about this to fix it. Please let me know why so I can learn.  Another question I have is if watch functionality should be implemented for build:dist.

## Quesitonable scaffolding (Not sure if this should be accepted)
1. Questionable scaffolding modified in partial/index.js. Running sub generator partial on modules creates file in app/modules/[module-name]/modules/partial/[partial-name] directory. I removed the extra modules so that the files are created in app/modules/[module-name]/partial/[partial-name] directory


##Future work
Based on reading google’s doc via https://docs.google.com/document/d/1XXMvReO8-Awi1EZXAXS4PzDzdNvV6pGcuaF4
Q9821Es/pub. It seems that this is not a word to word scaffolding
implementation. I am thinking about extending this project to utilize the
components and sub-section organization as well as adding -directive
-factory -service -controller suffix to all js file names that are generated through the sub generators.