* refactor struct's time to remove unnecessary memory usage

* use AsTimePtr simple code

* fix tests

* fix time compare

* fix template on gpg

* use AddDuration instead of Add

Indexed search of repository contents (for default branch only)

* Add checks for commits with missing author and time

* Fix validate commits with emails if it has no Author

* Add commit count caching

* Small refactoring

* Add different key prefix for refs and commits

* Add configuratuion option to allow to change caching time or disable it

* implemented missing 'delete' push webhooks

moreover created ActionDeleteBranch and ActionDeleteTag

* add CommitRepoAction tests for tag/branch creation/deletion

* fixed error where push webhook not called if is new branch or tag
removed unnecessary code

* moved prepare unit test environment into separate method to be used across unit tests

* add missing if clause in pushUpdate

Signed-off-by: David Schneiderbauer <dschneiderbauer@gmail.com>

* Sync releases table with tags on push and for mirrors

* Code style fixes

* Fix api to return only releases

* Optimize release creation and update
Minimize posibility of race conditions

* Fix release lower tag name updating

* handle tag reference update by addionally comparing commit id

* Trigger sync webhooks on UI commit

* Also fix UI upload/delete

* remove env user salt since no need to use

* remove unused variable from update.go

* move all database operations from hook command to web command and instead of internal routes

* bug fixed

* adjust the import path sequences

* remove unused return value on hookSetup

* Implementation of the feature to view repository size in admin panel
 * Move GetRepoSize to git module
 * Repository.RepoSize -> Repository.Size
 * RepoSize -> Size in template
 * Redo a few bits and pieces
 * Update size when syncing mirror or forking
 * Remove GetRepoSize
 * Changed fatal errors to error message

* Copy migration code from Gogs

* make fmt

* move all push update to git hook post-receive and protected branch check to git hook pre-receive

* add SSH_ORIGINAL_COMMAND check back

* remove all unused codes

* fix the import

This change corrects a few logging issues:

 * Standardized formatting errors with '%v'.
 * Standardized failure warning word usage.
 * Corrected an instance of using the standard log library when
   the gitea log library should be used instead.

- Update import paths from github.com/go-gitea to code.gitea.io
- Fix import path for travis

See https://docs.travis-ci.com/user/languages/go#Go-Import-Path

* Replace gogits/git-module dependency with go-gitea/git

Fixes #92

* Remove git alias for git module import (not needed)

Remove the possibility of using email as user name when user actually push
through combination of email and password with HTTP.

Also refactor update action function to replcae tons of arguments with
single PushUpdateOptions struct.
And define the user who pushes code as pusher, therefore variable names shouldn't
be confusing any more.